Category: English

Source: The Conversation – USA (2) – By Ali Mirchi, Associate Professor of Water Resources Engineering, Oklahoma State University

Fall marks the start of Iran’s rainy season, but large parts of the country have barely seen a drop as the nation faces one of its worst droughts in decades. Several key reservoirs are nearly dry, and Tehran, the nation’s capital, is facing an impending “Day Zero” – when the city runs out of water.

The situation is so dire, Iranian President Masoud Pezeshkian has revived a long-debated plan to move the capital from this metro area of 15 million people.

Previous administrations have floated the idea of moving the capital but never implemented it. Tehran’s unbridled expansion has created a host of problems, ranging from chronic water stress and land subsidence to gridlocked traffic and severe air pollution, while also heightening concerns about the city’s vulnerability to major seismic hazards.

This time, Pezeshkian has framed relocation as a mandate, not a choice. He warned in November 2025 that if nothing changes, the city could become uninhabitable.

How Iran got to the point of water bankruptcy

Drought has been a concern in this part of the world for millennia. A prayer by the Persian King Darius the Great that was carved in stone more than 2,000 years ago asked his god to protect the land from invaders, famine and lies.

However, today, Iran’s escalating water and environmental problems are the predictable outcome of decades of treating the region’s finite water resources as if they were limitless.

Iran has relied heavily on water-intensive irrigation to grow food in dry landscapes and subsidized water and energy use, resulting in overpumping from aquifers and falling groundwater supplies. The concentration of economic activity and employment in major urban centers, particularly Tehran, has also catalyzed massive migration, further straining already overstretched water resources.

Those and other forces have driven Iran toward “water bankruptcy” – the point where water demand permanently exceeds the supply and nature can’t keep up.

Iran’s centralized, top-down approach to water governance has proven ineffective in ensuring the sustainability of its water resources and in maintaining a balance between renewable water supply and demand, a gap that has continued to widen.

Since the 1979 revolution, Iran has pursued an aggressive hydraulic mission, building dams and diverting rivers to support sprawling cities and expanding irrigated agriculture. Driven by ideological ambitions, the country’s focus on food self-sufficiency together with international sanctions and economic isolation, have taken a heavy toll on the nation’s environment, particularly its water resources. Drying lakes, groundwater depletion and rising salinity are now prevalent across Iran, reflecting dire water security risks throughout the country.

As water resource and environmental engineers and scientists, including a former deputy head of Iran’s Department of Environment, we have followed the county’s water challenges for years. We see viable solutions to its chronic water problems, though none is simple.

Falling water reserves leave Iran vulnerable

Experts have been warning for years that the lack of foresight to tackle Iran’s water bankruptcy problem leaves the country increasingly vulnerable to extreme climate conditions.

Iranians are again seeing those risks in this latest drought.

Precipitation has been well below normal in four of the water years since 2020. That has contributed to a sharp decline in reservoir levels. Fall 2025 has been the hottest and driest fall on record for Tehran since 1979, testing the resilience of its water system.

The city faces mounting stress on already diminished groundwater reserves, with little relief in sight without significant rainfall.

Shrinking snowpack and shifting rainfall patterns make it harder to predict how much water will flow in rivers and when. Rising temperatures make the problem worse by boosting demand and leaving less water in the rivers.

There is no quick fix to resolve Tehran’s water emergency. In the near term, only significantly more rainfall and a reduction in consumption can offer respite.

Panicky moves to increase interbasin water transfers, such as the Taleqan‑to‑Tehran water transfer to pump water from the Taleqan Dam, over 100 miles (166 km) away, are not only inadequate, they risk worsening the water supply and demand imbalance in the long run. Iran has already experimented with piping water between basins, and those transfers have in many cases fueled unsustainable growth rather than real conservation, worsening water problems both in the donor and recipient basins.

At its core, Tehran’s predicament stems from a chronic mismatch between supply and demand, driven by rapid population growth.

Whether relocating the political capital, as suggested by Pezeshkian, could meaningfully reduce the city’s population, and hence the water demand, is highly doubtful.

The sparsely populated Makran region in the country’s southeast, along the Gulf of Oman, has been mentioned as a potential option, touted as a “lost paradise,” though details on how much of the city or population would move remain unclear.

Meanwhile, other major Iranian cities are facing similar water stresses, highlighting the fact that this is a nationwide threat.

Water solutions for a dry country

The country needs to start to decouple its economy from water consumption by investing in sectors that generate value and employment opportunities with minimal water use.

Agricultural water consumption can be reduced by producing higher-value, less water-intensive crops, taking into account food security, labor market and cultural considerations. Any water savings could be used to replenish groundwater.

Becoming more open to global trade and importing water-intensive crops, rather than growing them, would also allow Iran to use its limited agricultural land and water to grow a smaller set of strategic staple crops that are critical for national food security.

That’s a transition that will be possible only if the country moves toward a more diversified economy that allows for reduced pressure on the country’s finite resources, an option that seems unrealistic under economic and international isolation.

Urban water demand could be reduced by strengthening public education on conservation, restricting high-consuming uses such as filling private swimming pools, and upgrading distribution infrastructure to minimize leaks.

Treated wastewater could be further recycled for both drinking and nonpotable purposes, including maintaining river flows, which are currently not prioritized.

Where feasible, other solutions such as flood management for aquifer recharge, and inland groundwater desalination, can be explored to supplement supplies while minimizing environmental harm.

Taken together, these measures require bold, coordinated action rather than piecemeal responses.

Renewed talk of relocating the capital signals how environmental stresses are adding to the complex puzzle of Iran’s national security concerns. However, without addressing the root causes of the nation’s water bankruptcy, we believe moving the capital to ease water problems will be futile.

Nothing to disclose.

Mojtaba Sadegh receives funding from the US National Science Foundation, NASA, and the Joint Fire Science Program.

Amir AghaKouchak and Kaveh Madani do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their academic appointment.

– ref. Iran’s president calls for moving its drought-stricken capital amid a worsening water crisis – how Tehran got into water bankruptcy – https://theconversation.com/irans-president-calls-for-moving-its-drought-stricken-capital-amid-a-worsening-water-crisis-how-tehran-got-into-water-bankruptcy-270456

Source: The Conversation – USA (2) – By Ivano W. Aiello, Professor of Marine Geology, San José State University

When fire broke out at the world’s largest battery energy storage facility in January 2025, its thick smoke blanketed surrounding wetlands, farms and nearby communities on the central California coast.

Highways closed, residents evacuated and firefighters could do little but watch as debris and ash rained down. People living in the area reported headaches and respiratory problems, and some pets and livestock fell ill.

Two days later, officials announced that the air quality met federal safety standards. But the initial all-clear decision missed something important – heavy metal fallout on the ground.

When battery energy storage facilities burn, the makeup of the chemical fallout can be a mystery for surrounding communities. Yet, these batteries often contain metals that are toxic to humans and wildlife.

The smoke plume from the fire in Vistra’s battery energy storage facility at Moss Landing released not just hazardous gases such as hydrogen fluoride but also soot and charred fragments of burned batteries that landed for miles around.

I am a marine geologist who has been tracking soil changes in marshes adjacent to the Vistra facility for over a decade as part of a wetland-restoration project. In a new study published in the journal Scientific Reports, my colleagues and I were able to show through detailed before-and-after samples from the marshes what was in the battery fire’s debris and what happened to the heavy metals.

The batteries’ metal fragments, often too tiny to see with the naked eye, didn’t disappear. They continue to be remobilized in the environment today.

What’s inside the batteries

Moss Landing, at the edge of Monterey Bay, has long been shaped by industry – a mix of power generation and intensive agriculture on the edge of a delicate coastal ecosystem.

The Vistra battery storage facility rose on the site of an old Duke Energy and PG&E gas power plant, which was once filled with turbines and oil tanks. When Vistra announced it was converting the site into the world’s largest lithium-ion battery facility, the plan was hailed as a clean energy milestone. Phase 1 alone housed batteries with 300 megawatts of capacity, enough to power about 225,000 homes for four hours.

The energy in rechargeable batteries comes from the flow of electrons released by lithium atoms in the anode moving toward the cathode.

In the type of batteries at the Moss Landing facility, the cathode was rich in three metals: nickel, manganese and cobalt. These batteries are prized for their high energy density and relatively low cost, but they are also prone to thermal runaway.

Lab experiments have shown that burning batteries can eject metal particles like confetti.

Metals found in wetlands matched batteries

When my team and I returned to the marsh three days after the fire, ash and burned debris covered the ground. Weeks afterward, charred fragments still clung to the vegetation.

Our measurements with portable X-ray fluorescence showed sharp increases in nickel, manganese and cobalt compared with data from before the fire. As soon as we saw the numbers, we alerted officials in four counties about the risk.

We estimate that about 25 metric tons (55,000 pounds) of heavy metals were deposited across roughly half a square mile (1.2 square kilometers) of wetland around Elkorn Slough, and that was only part of the area that saw fallout.

To put this in perspective, the part of the Vistra battery facility that burned was hosting 300 megawatts of batteries, which equates to roughly 1,900 metric tons of cathode material. Estimates of the amount of batteries that burned range from 55% to 80%. Based on those estimates, roughly 1,000 to 1,400 metric tons of cathode material could have been carried into the smoke plume. What we found in the marsh represents about 2% of what may have been released.

We took samples at hundreds of locations and examined millimeter-thin soil slices with a scanning electron microscope. Those slices revealed metallic particles smaller than one-tenth the width of a human hair – small enough to travel long distances and lodge deep in the lungs.

The ratio of nickel to cobalt in these particles matched that of nickel, manganese and cobalt battery cathodes, clearly linking the contamination to the fire.

Over the following months, we found that surface concentrations of the metals dropped sharply after major rain and tidal events, but the metals did not disappear. They were remobilized. Some migrated to the main channel of the estuary and may have been flushed out into the ocean. Some of the metals that settled in the estuary could enter the food chain in this wildlife hot spot, often populated with sea otters, harbor seals, pelicans and herons.

Making battery storage safer as it expands

The fire at Moss Landing and its fallout hold lessons for other communities, first responders and the design of future lithium-ion battery systems, which are proliferating as utilities seek to balance renewable power and demand peaks.

When fires break out, emergency responders need to know what they’re dealing with. A California law passed after the fire helps address this by requiring strengthening containment and monitoring at large battery installations and meetings with local fire officials before new facilities open.

Newer lithium-ion batteries that use iron phosphate cathodes are also considered safer from fire risk. These are becoming more common for utility-scale energy storage than batteries with nickel, manganese and cobalt, though they store less energy.

How soil is tested is also important. At Moss Landing, some of the government’s sampling turned up low concentrations of the metals, likely because the samples came from broad, mixed layers that diluted the concentration of metals rather than the thin surface deposits where contaminants settled.

Continuing risks to marine life

Metals from the Moss Landing battery fire still linger in the region’s sediments and food webs.

These metals bioaccumulate, building up through the food chain: The metals in marsh soils can be taken up by worms and small invertebrates, which are eaten by fish, crabs or shorebirds, and eventually by top predators such as sea otters or harbor seals.

Our research group is now tracking the bioaccumulation in Elkhorn Slough’s shellfish, crabs and fish. Because uptake varies among species and seasons, the effect of the metals on ecosystems will take months or years to emerge.

Ivano Aiello receives funding from private donors.

– ref. When the world’s largest battery power plant caught fire, toxic metals rained down – wetlands captured the fallout – https://theconversation.com/when-the-worlds-largest-battery-power-plant-caught-fire-toxic-metals-rained-down-wetlands-captured-the-fallout-268848

Source: The Conversation – USA (2) – By Sheneka Williams, Professor of Educational Administration, Michigan State University

Many high school seniors are currently in the midst of the college application process or are already waiting to hear back from their selected schools.

For high school students in rural parts of the United States, the frantic pace of the college application process can look a bit different. For starters, some of these rural students might not have large numbers of elite universities and colleges coming to admissions fairs in their areas. They might not have all of the required high school courses to attend some of these schools, either, according to Sheneka Williams, a scholar of educational leadership and rural education who graduated from a small, rural high school in Alabama.

Amy Lieberman, the education editor at The Conversation U.S., spoke with Williams to understand the particular experiences of rural students – and what, exactly, coming from a rural background can mean as students think about college.

How are rural high school students’ experiences unique?

Nationally, nearly 10 million students – or 1 in 5 public school students in the U.S. – attended rural schools in the fall of 2022.

Research suggests that rural students finish or complete high school at a higher rate than urban students.

While approximately 90% of rural high school students graduated in 2020, 82% of urban high school students got their diplomas that year.

But rural students’ college entrance rate is lower than that of urban and suburban students.

Within four years of graduating high school, 71% of rural students attended college, compared to 73% of suburban and 71% of city students who also went to college, according to 2023 findings by the National Center for Education Statistics.

Why are rural students finishing high school at a higher rate than their suburban and urban peers but attending college at a lower rate?

First, we know that some colleges are not really recruiting students in rural areas. If these universities don’t know you exist, and if your parents haven’t gone to college and don’t know how the admission system works, you might not have help as you move closer to attending college. Some rural schools also do not have college counselors.

There are other reasons why some rural high school graduates are not going to college, I have personally seen. Some students are apprehensive about leaving home. They have close-knit families and communities, and they might be wondering where they fit in at a school in a large place that is much bigger than where they grew up.

Do any of these scenarios describe your own educational journey?

I grew up in a small town in Alabama and was different from some of the other Black students, since I came from a family of educators who had gone to college for two generations.

But when I did go to college, I went to a campus that was two times the size of my hometown, which has a population of just 12,000. It takes a confident student, as well as encouragement from parents or mentors, to believe that you can go to school away from home.

We had some college fairs in high school, but the visiting colleges were state universities and regional schools. You did not have selective schools coming to recruit.

Students today can learn about schools online, but there is still the issue that universities are not, on their own, connecting enough with rural students.

Do rural students fit into universities’ diversity goals?

Only recently have people begun to think and talk more about what rural really means. Some people use the U.S. Census Bureau’s definition of rural, which is “all population, housing, and territory not included within an urban area.”

But that’s a somewhat surface definition. It’s hard for some scholars to agree on what counts as rural, including me. It feels like something you have to experience and know, and that is hard to define. Part of the issue is that rural has been defined by what urban is not, and that makes it seem it doesn’t deserve its own definition.

Universities are beginning to think about these rural students more and the particular challenges they experience in school. That includes not necessarily having stable access to high-speed internet, which approximately 22.3% of Americans in rural areas and 27.7% of Americans in tribal areas don’t have, compared to only 1.5% of Americans in urban areas.

Another issue is that even for rural students who want to go to college, they might not have the right qualifications, such as certain courses they have completed.

I am currently involved in research with sociologists Barbara Schneider and education scholars Joe Krajcik and Clausell Mathis about how some rural high schools in Alabama and Mississippi aren’t able to teach physics or chemistry. Physics and chemistry are both gateway courses to college, and if you want to be an engineer or STEM major, you have to complete these courses in order to have a shot at certain colleges.

Rural high schools tend to have a lack of resources, in terms of both budget and their staffing. Schools not being able to find teachers who are qualified or certified in certain subject areas, such as science courses, is a nationwide problem. But this issue is tougher in smaller, rural towns.

Schools will say they don’t have students interested in those subjects. But the states also aren’t requiring that these classes are offered.

This lack of science course offerings can create a whole block of students who are not going to college. And if we are talking about the South, in particular, and states that have a high population of Black students in rural areas, we are talking about a whole swath of students who don’t have this education and would find it a struggle to get into larger, splashier schools that are not near home.

What do you think are some of the solutions to these challenges?

There are many local efforts to offer tutoring and things of that nature for rural high school students. Some of those efforts have been blunted because schools are funded by property taxes, and some of them just don’t have the revenue to pay for these add-ons without federal support.

I think colleges need to do a better job of recruiting students at rural high schools. I also think that once these students make it to college, it would help if there were support or affinity groups.

Some colleges have not thought enough about rural students. I think the narrative around rural students and college needs to shift – these students may want to go to college, but nobody is looking for them. When you live in small, geographically isolated places, sometimes you only know what you see.

Sheneka Williams receives funding from the U.S. Department of Education.

– ref. Rural high school students are more likely than city kids to get their diplomas, but they remain less likely to go to college – https://theconversation.com/rural-high-school-students-are-more-likely-than-city-kids-to-get-their-diplomas-but-they-remain-less-likely-to-go-to-college-269246

Source: The Conversation – USA (2) – By Cristobal Young, Associate Professor of Sociology, Cornell University

New York’s mayor-elect, Zohran Mamdani, campaigned on a promise to raise the city’s income tax on its richest residents from 3.9% to 5.9%. Combined with the state income tax, which is 10.9% for the top bracket, the increase would cement the city’s position as having the highest taxes on top earners in the country.

It set off a chorus of warnings about the tax flight of the city’s wealthiest residents.

Hedge fund billionaire Bill Ackman claimed that both the city’s businesses and wealthy residents “have already started making arrangements for the exits.”

New York Gov. Kathy Hochul echoed the concern, opposing the proposal “because we cannot have them leave the state.” Before the election, Mamdani’s opponent, former New York governor Andrew Cuomo, joked that if Mamdani won, “even I will move to Florida.”

I research whether high earners actually move when their taxes go up. My colleagues and I have analyzed millionaire taxes in New Jersey and California, the migration of Forbes billionaires globally and decades of IRS data tracing where Americans with million-dollar incomes live.

Top earners are often thought of as “mobile millionaires” who are ever searching for lower-tax places to live. In reality, they’re often reluctant to leave the places where they built their careers and raised their families.

At the same time, there are grains of truth in the tax migration arguments, so it’s important to carefully parse the evidence.

A small fraction of a small fraction

The first fact is simple: Millionaires have low migration rates.

Mobility in America is highest among people who are still searching for their economic place in life. Workers who earn the lowest wages move across state lines at relatively high rates, about 4.5% per year, often in search of more affordable housing. People making $1 million-plus a year move only half as often: Just 2.4% of them pack up each year.

When millionaires do move, it rarely appears to be for tax reasons. For example, Florida is the top destination for New York movers in general. But among the richest 1% of New Yorkers, the top destination is Connecticut, followed by New Jersey and California, all three of which levy a millionaire tax.

Some millionaires certainly do favor lower-tax destinations. But many moves to low-tax states are offset by moves in the opposite direction to higher-tax states, and many other moves take place between states that have the same tax rate.

Overall, only about 15% of millionaires who move end up with a lower tax bill. That shows the rich are willing and able to move for tax reasons. But because only about 2.4% of millionaires move each year – and only a fraction of those moves reduce their taxes – overall tax migration ends up being a small fraction of a small fraction. Not never, but not often.

Some benefits don’t have a dollar sign

Migration is mostly a young person’s game.

The most mobile Americans are recent college graduates who are brimming with potential, searching for work and unburdened by major responsibilities. Their rate of migration from one state to another is over 12%, more than four times the rate of millionaires.

The typical adult mover is about 30 years old, while the highest income earners are typically about 50. People choose where to build their careers and families decades before they reach their peak earnings phase.

By the time someone earns enough to be taxed in the highest brackets, they’re usually late into their careers. They are almost always married, often have children at home, own their homes and, in many cases, own a business. Their social lives and their economic success are linked to local networks of colleagues, clients and connections built up over a long career. Moving away from those networks means giving up a great deal of social capital and starting over somewhere new.

Top earners know that some states have lower taxes, but for most, tax flight is simply a bad deal. The social and economic costs of uprooting are bigger than the tax savings.

When your social world collapses

Two recent events showed why the rich generally stay where they are – and what it takes to move them.

The first was the Tax Cuts and Jobs Act, which President Donald Trump signed into law in late 2017. The tax reform package capped the federal deduction for state and local taxes and raised taxes on high earners in states like New York, New Jersey and California. In a Wall Street Journal op-ed titled “So Long, California. Sayonara, New York,” economists Arthur Laffer and Stephen Moore predicted that 800,000 people a year would flee those states.

They didn’t. A colleague and I studied every millionaire tax return in the country for two years before and after the reform. Nothing happened. There was no increase in migration out of the states where tax burdens rose. The predicted exodus simply did not occur.

We were about to wrap up the study and call it case closed. Then something unexpected did happen: In early 2020, millionaires began leaving high-tax states in large numbers. Low-tax states saw no comparable outflows. The pattern matched those tax-flight predictions from just a few years earlier.

It was the COVID-19 pandemic, and it brought a profound shock to the social lives of city residents.

Offices emptied out, with entry swipes in major cities dropping by nearly 90%. Time spent at work fell sharply, local amenities were shuttered, and time spent alone grew as in-person contact became a health risk. K–12 schools closed, disrupting children’s relationships with teachers and classmates.

For many households, this was also a strange form of freedom, and a chance to rethink the geography of work and life, especially for top earners who could work remotely from anywhere. Disconnected from the bonds of place, top earners moved and clearly favored low-tax destinations.

The lesson is that social lives and economic policies are deeply intertwined. The 2017 tax reform had no effect on migration because the social cost of moving is high – especially for people at the peak of their careers who are enjoying the many social benefits of economic success. As long as those connections to others are strong, they outweigh the appeal of moving to lower-tax states.

When the pandemic broke apart so much of social life, the ledger shifted. If your office, school, friendships and daily routines no longer anchor you in place, what is keeping you in a high-tax place?

But by early 2023, as social and economic life returned to normal, we found that millionaire migration patterns mostly reverted to their prepandemic baselines.

In other words, the surge in tax flight was temporary.

If you want the rich, appeal to the young

There is a big lesson here for state and city policies.

Every place wants to attract high-income earners and the spending power and tax dollars that accompany their salaries. Many policymakers think that tax cuts will lure them in, but this is mostly a fool’s errand. In normal times, the rich are deeply rooted and not movable.

The real opportunity lies in attracting and retaining the next generation of top earners – young people who are unattached to place and looking for opportunities to build their careers and their lives. Places that draw young professionals build the pipeline of future top earners.

Those early-career folks are mobile, but they are not thinking about the top tax rate. Their salaries are low. They are trying to find good jobs, pay the rent, form relationships and start families. They hope to be successful enough to one day be paying Mamdani’s millionaire tax. For the time being, though, they need the basic costs of living to be manageable. Soon they will need affordable child care and good public schools for their kids.

If the city helps them that far along, many of them would gladly pay a millionaire tax when and if the time comes. In this light, the Mamdani plan is simply practical: Higher taxes at the top support the services and quality of life that keep the next generation in the city.

Cristobal Young received funding from the Russell Sage Foundation and the Washington Center for Equitable Growth in support of this research project.

– ref. New York’s wealthy warn of a tax exodus after Mamdani’s win – but the data says otherwise – https://theconversation.com/new-yorks-wealthy-warn-of-a-tax-exodus-after-mamdanis-win-but-the-data-says-otherwise-270415

Source: The Conversation – USA (3) – By Katherine Cobb-Pitstick, Assistant Professor of Child Neurology, University of Pittsburgh

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

Why do people get headaches? – Evie V., age 10, Corpus Christi, Texas

Whether sharp and stabbing or dull and throbbing, a headache can ruin your day. But your brain doesn’t actually feel pain. So what is going on when it feels like your head is in a vise or about to explode?

I am a child neurologist – that is, a doctor who specializes in diseases of the brain in kids. Most of my patients are kids and adolescents who are struggling with headaches.

Head pain is complicated, and there is still a lot to learn about what causes it and how it can be treated. But researchers know there are a few key players that take part in generating pain.

What are headaches?

Nerves communicate information like pain through electrical signals between the body and the brain.

While the brain itself doesn’t have any nerve sensors to feel pain, blood vessels in the head and structures that protect and surround the brain do sense pain. When these tissues detect injury or damage, they release chemicals that trigger transmission of electrical signals through nerves to tell the brain the head is hurting.

The brain will also use nerves to signal the body to respond to pain with symptoms like feeling tired, teary eyes, runny nose, upset stomach and discomfort in bright or loud environments. It’s not clear why humans evolved to feel these symptoms, but some scientists theorize that this can lead to healthier lifestyle choices to decrease the chance of future headache attacks.

What causes headaches?

Often, headaches are a sign that the body is under some kind of stress. That stress triggers chemical and physical changes to the nerves and blood vessels around your brain, head and neck that can cause headaches.

Many types of stresses can cause headaches, including an infection, allergies, hormone changes during puberty and menstrual cycles, not getting enough sleep, not drinking enough water, skipping meals or drinking too much caffeine or alcohol. Sometimes, headaches happen with emotional stress, like feeling anxious or depressed. Even pressure in your sinuses due to changes in the weather can cause your head to hurt.

One in 11 kids have had a type of severe headache called a migraine. They feel like a pulsing and pounding pain in your head and come with other symptoms, including nausea or being sensitive to lights and sounds. During a migraine, it can be hard to do everyday activities because they can make the pain worse. It is also very common to feel unwell or irritable before the head pain starts and after the pain is gone.

Migraines occur when the nerves and other structures used in signaling and interpreting pain aren’t working properly, leading to pain and discomfort from stimulation that wouldn’t normally provoke this. There are many environmental and genetic factors that contribute to this dysfunction. Some people are born with a higher risk of developing migraines. Most people with migraines have someone in their family who also experiences them.

What can treat and prevent headaches?

Identifying what type of headache you’re experiencing is crucial to making sure it is treated properly. Because migraines can be severe, they’re the type of headache that most often leads to doctor’s visits for both kids and adults.

There are several ways to reduce your chances of having headaches, such as drinking plenty of water and limiting caffeine. Eating, sleeping and exercising regularly are other ways you can help prevent headaches.

While painkillers like ibuprofen are often enough to relieve a headache, prescription medications are sometimes necessary to make head pain more bearable. Some medications can also help control or prevent headache episodes. Physical therapy to exercise the body or behavioral therapy to work on the mind can also help you manage headache pain. There are even electronic devices to treat headaches by stimulating different parts of the nervous system.

It is important to talk with a doctor about headaches, especially if it’s a new problem or you experience a change in how they usually feel. Sometimes, brain imaging or blood tests are needed to rule out another health issue.

Recognizing a headache problem early will help your doctor get started on helping you figure out the best way to treat it.

Hello, curious kids! Do you have a question you’d like an expert to answer? Ask an adult to send your question to CuriousKidsUS@theconversation.com. Please tell us your name, age and the city where you live.

And since curiosity has no age limit – adults, let us know what you’re wondering, too. We won’t be able to answer every question, but we will do our best.

Katherine Cobb-Pitstick does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.

– ref. Why do people get headaches and migraines? A child neurologist explains the science of head pain and how to treat it – https://theconversation.com/why-do-people-get-headaches-and-migraines-a-child-neurologist-explains-the-science-of-head-pain-and-how-to-treat-it-268838

Source: The Conversation – USA (3) – By Kobi V. Ajayi, Research Assistant Professor of Maternal and Child Health, Texas A&M University

Seven years ago, at 30 weeks into a seemingly low-risk pregnancy, I unexpectedly began to bleed. Doctors diagnosed me with complete placenta previa. Then, while on bed rest at 32 weeks, my placenta suddenly ruptured, leading to an immediate emergency cesarean section.

I became one of about 10% of women giving birth in Nigeria to experience a preterm birth, which means before 37 weeks of pregnancy.

Now, as a maternal and child health researcher in the U.S., I’m struck by the stubbornly high preterm birth rate here. According to the most recent March of Dimes Report Card on maternal and infant health, released on Nov. 17, 2025, 10.4% of babies in the U.S. were born prematurely in 2024.

Preterm birth is the second-leading cause of infant deaths in the U.S., contributing to over 20,000 infant deaths each year. Some who survive are at increased risk of immediate and long-term health problems, with substantial emotional and financial tolls.

That rate has not budged for three years, according to the report – and it is consistently higher than in many other countries, particularly those in the Global North. That’s also true for other crucial aspects of maternal and infant health, such as cardiovascular diseases and mental health needs.

One key factor underlying the problem of preterm birth in the U.S. is extensive disparities in health care access for expectant mothers. In Texas, where I conduct my research and where I managed the state’s maternal mortality and morbidity review committee in 2023 and 2024, this issue plays out very clearly.

Revealing disparities that drive preterm birth rates

The March of Dimes report scored the U.S. overall a D+ grade on preterm birth rate at 10.4%, but states differ dramatically in their scores. New Hampshire, for example, scored an A- with 7.9% of infants born prematurely, while Mississippi, where 15% of infants are born prematurely, scored an F.

Texas’ rates aren’t the worst in the country, but it scores notably worse than the national rate of 10.4%, with 11.1% of babies – 43,344 in total – born prematurely in 2024. And Texas has an especially large effect on the low national score because 10 of the 46 cities that receive a D or F grade – defined in the report as a rate higher than the national rate of 10.4% – are located there. In 2023, Texas had the highest number of such cities in the U.S.

That may be in part because access to maternal care in Texas is so limited. Close to half of all counties across the state completely lack access to maternity care providers and birthing facilities, compared with one-third of counties across the U.S. Moreover, more counties in Texas are designated as health professional shortage areas, meaning they lack enough doctors for the number of people living in these areas. Shortages exist in 257 areas in Texas for primary care doctors, 149 for dentists and 251 for mental health providers.

But even against the backdrop of geographic differences in health care access, the starkest contribution to the state’s preterm birth rates comes from ethnic and racial disparities. Mothers of non-Hispanic Black (14.7%), American Indian/Alaskan Native (12.5%), Pacific Islander (12.3%) and Hispanic (10.1%) descent have babies prematurely much more often than do mothers who are non-Hispanic white (9.5%) or Asian (9.1%).

These numbers reflect the broader landscape of maternal health in the U.S. Although nationwide maternal mortality rates decreased from 22.3 to 18.6 deaths per 100,000 live births from 2022 to 2023, Black women died during pregnancy or within one year after childbirth at almost three times the rate (50.3%) of white (14.5%), Hispanic (12.4%) and Asian (10.7%) women.

Preterm birth in context

Having a baby early is not the normal or expected outcome during pregnancy. It occurs due to complex genetic and environmental factors, which are exacerbated by inadequate prenatal care. According to the World Health Organization, women should have eight or more doctor visits during their pregnancy. Without adequate and quality prenatal care, the chances of reversing the preterm birth trends are slim.

Yet in Texas, unequal access to prenatal care remains a huge cause for concern. As the March of Dimes report documents, women of color in Texas receive adequate prenatal care at vastly lower rates than do white women – a fact that holds true in several other states as well. In addition, Texas has the highest uninsured rate in the nation, with 17% of women uninsured for health coverage, compared with a national average of 8%.

Nationwide, public health experts, community advocates and families are calling for comprehensive health insurance to help cover the costs of prenatal care, particularly for low-income families that primarily rely on Medicaid for childbirth. Cuts to funding for the Affordable Care Act and Medicaid outlined in the 2025 Budget Reconciliation Act make it likely that more Americans will lose access to care or see their health care costs balloon.

But state-level action may help reduce access barriers. In Texas, for example, a set of laws passed in 2025 may help improve access to care before, during and after pregnancy. Texas legislators funded initiatives targeted at workforce development in rural areas – particularly for obstetrician-gynecologists, emergency physicians and nurses, women’s preventive safety net programs, and maternal safety and quality improvement initiatives.

Rising rates of chronic diseases, such as hypertension, obesity and diabetes, also contribute to women giving birth prematurely. While working with the state maternal mortality and morbidity review committee, my team and I found that cardiovascular conditions contributed to the 85 pregnancy-related deaths that occurred in 2020.

An upward trend in obesity, diabetes and hypertension before pregnancy are pressing issues in the state, posing a serious threat to fetal and maternal health.

Learning from other countries

These statistics are grim.

But proven strategies to reduce these and other causes of maternal mortality and morbidity are available. In Australia, for instance, maternal deaths have significantly declined from 12.7 per 100,000 live births in the early 1970s to 5.3 per 100,000 between 2021 and 2022. The reduction can be linked to several medical interventions that are based on equitable, safe, woman-centered and evidence-based maternal health services.

In Texas, some of my colleagues at Texas A&M University use an equitable, woman-centered approach to develop culturally competent care centered on educational health promotion, preventive health care and community services.

Utilizing nurses and nonmedical support roles such as community health workers and doulas, my colleagues’ initiatives complement existing state efforts and close critical gaps in health care access for rural and low-income Texas families.

Across the country, researchers are using similar models, including the use of doulas, to address the Black maternal health crisis.

Research shows the use of doulas can improve access to care during pregnancy and childbirth, particularly for women of color.

It’s all hands on deck

There isn’t one, single risk factor that leads to a preterm birth, nor is there a universal approach to its prevention.

Results from my work with Black mothers who had a preterm birth aligns with what other experts are saying: Addressing the maternal health crisis in the U.S. requires more than policy interventions. It involves the dismantling of system-level and policy-driven inequities that lead to high rates of preterm births and negative pregnancy and childbirth outcomes, particularly for women of color, through funding, research, policy changes and community voices.

Although I had my preterm birth in Nigeria, my story and those shared by the Black mothers I have worked with in the U.S. show eerily similar underlying challenges across different settings.

Kobi Ajayi founded and remains affiliated with EDEN Foundation, Nigeria, a local non-profit organization with a mission to improve preterm infant outcomes.

– ref. Texas cities have some of the highest preterm birth rates in the US, highlighting maternal health crisis nationwide – https://theconversation.com/texas-cities-have-some-of-the-highest-preterm-birth-rates-in-the-us-highlighting-maternal-health-crisis-nationwide-270251