Jon Hamilton

Jon Hamilton has served as a correspondent for NPR's science desk since 1998. His current beat includes neuroscience, health risks, behavior, and bioterrorism. Recent pieces include a series on the chemical perchlorate, which is turning up in California's water supply; a government effort to find out just how many autistic children there are in the U.S.; and an exploration of "neuromarketing."

Before joining NPR in 1998, Hamilton was a media fellow with the Henry J. Kaiser Family Foundation studying health policy issues. He completed a project on states that have radically changed their Medicaid programs for the poor by enrolling beneficiaries in private HMOs.

From 1995-1997, Hamilton wrote on health and medical topics as a freelance writer, after having been a medical reporter for both The Commercial Appeal and Physician's Weekly.

Hamilton graduated with honors from Oberlin College in Ohio with a B.A. in English. As a student, he was the editor of the Oberlin Review student newspaper. He earned his master's degree in journalism from Columbia University where he graduated with honors, won the Baker Prize for magazine writing, and earned a Sherwood traveling fellowship.

Pages

3:27am

Thu July 10, 2014
Shots - Health News

Bingeing On Bad News Can Fuel Daily Stress

Originally published on Thu July 10, 2014 3:34 pm

Katherine Streeter for NPR

If you're feeling stressed these days, the news media may be partly to blame.

At least that's the suggestion of a national survey conducted by NPR, the Robert Wood Johnson Foundation and the Harvard School of Public Health.

Read more

4:36pm

Mon June 2, 2014
Shots - Health News

Bursts Of Light Create Memories, Then Take Them Away

Originally published on Tue June 3, 2014 4:38 pm

Katherine Streeter for NPR

You can't just open up a living brain and see the memories inside.

So Roberto Malinow, a brain scientist at the University of California, San Diego, has spent years trying to find other ways to understand how memories are made and lost. The research — right now being done in rats – should lead to a better understanding of human memory problems ranging from Alzheimer's to post-traumatic stress disorder.

Read more

3:33am

Mon June 2, 2014
Shots - Health News

Pregnancy Hormone May Reduce Multiple Sclerosis Symptoms

Originally published on Tue June 3, 2014 11:30 am

A collage of family photos of Melissa Sherak Glasser.
Mark Turner for NPR

For decades, women with multiple sclerosis have noticed that they tend to do better while they are pregnant. That has led to an experimental drug for the disease that's based on a hormone associated with pregnancy.

Read more

2:08am

Tue May 27, 2014
Shots - Health News

Military Plans To Test Brain Implants To Fight Mental Disorders

Originally published on Tue May 27, 2014 1:35 pm

In epilepsy, the normal behavior of brain neurons is disturbed. The drug valproic acid appears to help the brain replenish a key chemical, preventing seizures.
David Mack/Science Source

The Defense Advanced Research Projects Agency, or DARPA, is launching a $70 million program to help military personnel with psychiatric disorders using electronic devices implanted in the brain.

The goal of the five-year program is to develop new ways of treating problems including depression, anxiety and post-traumatic stress disorder, all of which are common among service members who fought in Iraq or Afghanistan.

Read more

3:46pm

Thu May 8, 2014
Shots - Health News

Anti-Aging Hormone Could Make You Smarter

Originally published on Thu May 8, 2014 7:49 pm

Klotho (right) is one of the three Greek Fates depicted in this Flemish tapestry at the Victoria and Albert Museum in London.
Wikimedia Commons

A hormone associated with longevity also appears to make people's brains work better.

The finding in Cell Reports could someday lead to drugs that improve memory and learning, researchers say.

Read more

4:25pm

Mon May 5, 2014
Science

Max Planck Goes To Florida, Invites Brain Scientists To Join

Originally published on Mon May 5, 2014 6:35 pm

Germany's famous Max Planck Society has opened a brain research institute in Jupiter, Fla. It's another move in the international competition to attract the best brain researchers.

4:36pm

Wed April 23, 2014
Shots - Health News

Education May Help Insulate The Brain Against Traumatic Injury

Originally published on Thu April 24, 2014 7:24 am

Proust and algebra may not sound like brain protection, but higher levels of education correlate with cognitive reserve.
iStockphoto

A little education goes a long way toward ensuring you'll recover from a serious traumatic brain injury. In fact, people with lots of education are seven times more likely than high school dropouts to have no measurable disability a year later.

Read more

5:24pm

Fri April 18, 2014
Shots - Health News

One Scientist's Quest To Vanquish Epileptic Seizures

Originally published on Fri April 18, 2014 7:13 pm

The dream of epilepsy research, says neurobiologist Ivan Soltesz, is to stop seizures by manipulating only some brain cells, not all.
Steve Zylius UC Irvine Communications

In the early 1990s, a young brain researcher named Ivan Soltesz heard a story that would shape his career.

His adviser told him about a school for children whose epileptic seizures were so severe and frequent that they had to wear helmets to prevent head injuries. The only exception to the helmet rule was for students who received an award.

"The big deal for them is that they can take the helmet off while they're walking across the stage," Soltesz says. "And that thing struck me as just wrong."

Read more

6:42pm

Mon April 14, 2014
Shots - Health News

Gene Linked To Alzheimer's Poses A Special Threat To Women

Originally published on Mon April 14, 2014 7:35 pm

Women make up nearly two-thirds of the people in the U.S. diagnosed with Alzheimer's disease.
iStockphoto

A gene associated with Alzheimer's disease appears especially dangerous to women and may be one reason that more women than men are diagnosed with the disease.

Read more

5:25pm

Tue April 8, 2014
Shots - Health News

The Forgotten Childhood: Why Early Memories Fade

Originally published on Wed April 9, 2014 6:13 am

Francis Csedrik remembers details of being bonked hard on the head when he was 4, and having to go to the emergency room.
Meg Vogel NPR

Francis Csedrik, who is 8 and lives in Washington, D.C., remembers a lot of events from when he was 4 or just a bit younger. There was the time he fell "headfirst on a marble floor" and got a concussion, the day someone stole the family car ("my dad had to chase it down the block"), or the morning he found a black bat (the furry kind) in the house.

Read more

2:24pm

Wed April 2, 2014
Shots - Health News

Map Of The Developing Human Brain Shows Where Problems Begin

Originally published on Tue May 27, 2014 2:31 pm

Images of the developing fetal brain show connections among brain regions.
Allen Institute for Brain Science; Bruce Fischl, Martinos Center for Biomedical Imaging, Massachusetts General Hospital

A high-resolution map of the human brain in utero is providing hints about the origins of brain disorders including schizophrenia and autism.

The map shows where genes are turned on and off throughout the entire brain at about the midpoint of pregnancy, a time when critical structures are taking shape, researchers reported Wednesday in the journal Nature.

Read more

3:30pm

Thu March 27, 2014
Shots - Health News

Jump In Autism Cases May Not Mean It's More Prevalent

Originally published on Thu March 27, 2014 4:39 pm

State numbers on autism probably don't accurately reflect children's health status, researchers say.
iStockphoto

The government's latest estimate shows that 1 in 68 children in the U.S. has an autism spectrum disorder. That's a remarkable jump from just two years ago, when the figure was 1 in 88, and an even bigger jump from 2007, when it was just 1 in 150.

But officials at the Centers for Disease Control and Prevention say the agency's skyrocketing estimates don't necessarily mean that kids are more likely to have autism now than they were 10 years ago.

Read more

6:56pm

Wed March 26, 2014
Shots - Health News

Brain Changes Suggest Autism Starts In The Womb

Originally published on Thu March 27, 2014 11:03 am

Researchers say intervention in early childhood may help the developing brain compensate by rewiring to work around the trouble spots.
iStockphoto

The symptoms of autism may not be obvious until a child is a toddler, but the disorder itself appears to begin well before birth.

Brain tissue taken from children who died and also happened to have autism revealed patches of disorganization in the cortex, a thin sheet of cells that's critical for learning and memory, researchers report in the New England Journal of Medicine. Tissue samples from children without autism didn't have those characteristic patches.

Read more

6:34pm

Wed March 19, 2014
Shots - Health News

Alzheimer's Diagnosis Expanding To Catch Early Warning Signs

Originally published on Thu March 20, 2014 8:17 am

Doctors may eventually be able to diagnose "preclinical" Alzheimer's in patients who have abnormal brain scans but who aren't yet showing behavioral symptoms of the disease.
iStockphoto

Alzheimer's disease isn't what it used to be. After 30 years of having doctors diagnose the disease by symptoms alone, researchers and advocacy groups are calling for new diagnostic criteria that recognize changes in the brain as well as changes in behavior.

The goal is to eventually allow doctors to diagnose "preclinical" Alzheimer's in patients who do not have problems with memory or thinking, but who do have an abnormal brain scan or some other sign that the disease may be developing.

Read more

2:04pm

Sun March 9, 2014
Shots - Health News

Alzheimer's Blood Test Raises Ethical Questions

Originally published on Mon March 10, 2014 9:59 am

Scientists have long sought a way to detect Alzheimer's before symptoms appear.
iStockphoto

An experimental blood test can identify people in their 70s who are likely to develop Alzheimer's disease within two or three years. The test is accurate more than 90 percent of the time, scientists reported Sunday in Nature Medicine.

Read more

5:28pm

Wed February 26, 2014
The Salt

Maybe That BPA In Your Canned Food Isn't So Bad After All

Originally published on Wed April 30, 2014 12:39 pm

Should you fear a chemical inside metal food containers like the ones that hold beans? Government scientists say no.
Chip Somodevilla Getty Images

Maybe BPA isn't so bad after all.

The plastic additive has been vilified by environmental advocacy groups. But the chemical had no effect on rats fed thousands of times the amount a typical person ingests, government scientists are reporting in the journal Toxicological Sciences.

Read more

3:35am

Mon February 24, 2014
Shots - Health News

Orphans' Lonely Beginnings Reveal How Parents Shape A Child's Brain

Originally published on Tue February 25, 2014 12:07 pm

In the Institute for the Unsalvageable in Sighetu Marmatiei, Romania, shown here in 1992, children were left in cribs for days on end.
Tom Szalay

Parents do a lot more than make sure a child has food and shelter, researchers say. They play a critical role in brain development.

Read more

3:00pm

Mon January 27, 2014
Shots - Health News

Stricter Autism Criteria Unlikely To Reduce Services For Kids

Originally published on Tue January 28, 2014 1:55 pm

Clinical specialist Catey Funaiock took notes while observing a 5-year-old boy at the Marcus Autism Center, part of Children's Healthcare of Atlanta, in September.
David Goldman AP

The clinical definition for when a child has some form of autism has been tightened. And these narrower criteria for autism spectrum disorder probably will reduce the number of kids who meet the new standard.

But researchers say the changes, which were rolled out last May, are likely to have a bigger effect on government statistics than on the care of the nation's children.

Read more

3:16am

Tue January 21, 2014
Shots - Health News

Mild-Mannered Stingrays Can Inflict A World Of Hurt

Originally published on Wed January 22, 2014 8:08 am

The round stingray is native to the eastern Pacific coast and is notorious for injuring swimmers and surfers.
laszlo-photo/Flickr

Want to get away? Thinking about a place with warm water and soft sand? Sounds nice. But think twice before you wade into that inviting surf. Chances are there are stingrays in the area.

Every year, these timid, shellfish-eating cousins of the shark inflict excruciating injuries on thousands of swimmers and surfers from the Bahamas to Bahrain to both coasts of the United States.

Read more

3:22am

Fri December 27, 2013
Shots - Health News

Can A Fruit Fly Help Explain Autism?

Originally published on Fri December 27, 2013 10:54 am

A newly discovered neural circuit in the brain of the common fruit fly seems to serve as a sort of "volume control," turning up and down the perception of sound and light.
Nicholas Monu iStockphoto

For President Obama, 2013 wasn't just the year of Obamacare. It was also the year of the brain.

In April, Obama announced his Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative — an effort to unlock "the mystery of the three pounds of matter that sits between our ears."

Read more

4:36pm

Thu December 26, 2013
Shots - Health News

Experimental Tool Uses Light To Tweak The Living Brain

Originally published on Mon December 30, 2013 8:09 am

A technique called optogenetics is being used in the laboratory to observe and control what brain circuits are doing in real time.
Henning Dalhoff Getty Images/Science Photo Library RM

When President Obama announced his BRAIN Initiative in April, he promised to give scientists "the tools they need to get a dynamic picture of the brain in action."

An early version of one of those tools already exists, scientists say. It's a relatively new set of techniques called optogenetics that allows researchers to control the activity of brain cells using light.

Read more

3:40pm

Tue December 24, 2013
Shots - Health News

Could Pot Help Veterans With PTSD? Brain Scientists Say Maybe

Originally published on Wed December 25, 2013 11:50 am

There's data to support the notion that pot, or a drug based on its active ingredient, could help ease the fears of PTSD.
Ted S. Warren AP

Veterans who smoke marijuana to cope with post-traumatic stress disorder may be onto something. There's growing evidence that pot can affect brain circuits involved in PTSD.

Read more

2:55pm

Fri November 29, 2013
Environment

'Forecast Bust:' Why 2013 Hurricane Predictions Were So Wrong

Originally published on Fri November 29, 2013 6:49 pm

Transcript

ARI SHAPIRO, BYLINE: It's ALL THINGS CONSIDERED from NPR News. I'm Ari Shapiro. The 2013 Atlantic hurricane season ends tomorrow. It'll be remembered as one of the quietest on record. Since June, there have been just two hurricanes, both were relatively weak. As NPR's Jon Hamilton reports, forecasters were expecting something very different.

JON HAMILTON, BYLINE: The National Oceanic and Atmospheric Administration told Americans to expect an unusually active year with between seven and 11 hurricanes. Other forecasters offered variations on that theme.

Read more

2:03pm

Thu November 28, 2013
Shots - Health News

Brain Cells 'Geotag' Memories To Cache What Happened — And Where

Originally published on Mon December 2, 2013 6:13 am

Benjamin Arthur for NPR

Think back to an important event in your life: a graduation, a birth, a special Thanksgiving dinner. Chances are you're remembering not only what happened, but also where it happened. And now scientists think they know why.

As we form so-called episodic memories, the brain appears to be using special cells in the hippocampus to "geotag" each event, researchers report in Science. The process is similar to what some digital cameras do when they tag each picture with information about where the image was taken.

Read more

2:54am

Mon November 25, 2013
Shots - Health News

In Pregnancy, What's Worse? Cigarettes Or The Nicotine Patch?

Originally published on Tue November 26, 2013 1:41 pm

Illustration by Daniel Horowitz for NPR

Lots of studies have shown that cigarette smoke isn't good for a fetus. So many pregnant women use nicotine gum or skin patches or inhalers to help them stay away from cigarettes.

A few years ago, Megan Stern became one of those women. "I smoked heavily for the first seven weeks of my pregnancy because I didn't know I was pregnant," she says. "It was an accidental pregnancy, and I found out while I was in the emergency room for another issue."

Read more

4:01pm

Fri November 15, 2013
Shots - Health News

Federal Brain Science Project Aims To Restore Soldiers' Memory

Originally published on Fri November 15, 2013 8:07 pm

President Obama has pledged millions of dollars to fuel research into understanding the workings of the human brain.
Zephyr Science Source

When President Obama announced his plan to explore the mysteries of the human brain seven months ago, it was long on ambition and short on details.

Now some of the details are being sketched in.

The BRAIN Initiative will include efforts to restore lost memories in war veterans, create tools that let scientists study individual brain circuits and map the nervous system of the fruit fly.

Read more

3:02am

Tue November 12, 2013
Shots - Health News

The Case Against Brain Scans As Evidence In Court

Originally published on Tue November 12, 2013 5:39 pm

When researchers at Weill Cornell Medical College scanned teenage brains, they found that the area that regulates emotional responses has to work harder to keep impulses in check.
Courtesty Kristina Caudle Developmental Neuroscience

It's not just people who go on trial these days. It's their brains.

More and more lawyers are arguing that some defendants deserve special consideration because they have brains that are immature or impaired, says Nita Farahany, a professor of law and philosophy at Duke University who has been studying the use of brain science in court.

Read more

9:27am

Mon November 11, 2013
Shots - Health News

Sweat Your Way To A Healthier Brain

Originally published on Tue November 12, 2013 8:14 am

He feels smarter already.
iStockphoto.com

Moving your body may be the best way to protect your brain.

Physical exercise can ease depression, slow age-related memory loss and prevent Parkinson-like symptoms, researchers reported at the Society for Neuroscience meeting underway in San Diego.

The findings — some in animals, some in people — suggest that people may be making a mistake if they're relying primarily on crossword puzzles and brain-training games for mental wellness.

Read more

6:14pm

Thu October 10, 2013
Shots - Health News

Shutdown Imperils Costly Lab Mice, Years Of Research

Originally published on Thu October 10, 2013 8:33 pm

Bob Adams is a lab animal veterinarian at Johns Hopkins University.
Maggie Starbard NPR

The government shutdown is likely to mean an early death for thousands of mice used in research on diseases such as diabetes, cancer and Alzheimer's.

Federal research centers including the National Institutes of Health will have to kill some mice to avoid overcrowding, researchers say. Others will die because it is impossible to maintain certain lines of genetically altered mice without constant monitoring by scientists. And most federal scientists have been banned from their own labs since Oct. 1.

Read more

5:39pm

Wed October 2, 2013
Shots - Health News

A DEET-Like Mosquito Spray That Smells Like Jasmine Or Grapes?

Originally published on Fri October 4, 2013 9:56 am

Scientists have discovered four new DEET-like mosquito repellents. Three of them are safe to eat.
Courtesy of Pinky Kai/University of California, Riverside

California scientists are reporting a pair of victories in the epic struggle between man and mosquito.

A team at the University of California, Riverside, appears to have finally figured out how bugs detect the insect repellent known as DEET. And the team used its discovery to identify several chemical compounds that promise to be safer and cheaper than DEET, according to the report in the journal Nature.

Read more

Pages