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.

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2:59pm

Thu October 17, 2013
Shots - Health News

Brains Sweep Themselves Clean Of Toxins During Sleep

Originally published on Fri October 18, 2013 3:35 pm

Katherine Streeter for NPR

While the brain sleeps, it clears out harmful toxins, a process that may reduce the risk of Alzheimer's, researchers say.

During sleep, the flow of cerebrospinal fluid in the brain increases dramatically, washing away harmful waste proteins that build up between brain cells during waking hours, a study of mice found.

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6:33pm

Thu October 10, 2013
Shots - Health News

Shutdown Imperils Costly Lab Mice, Years Of Research

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.

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3:39pm

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 7:56 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.

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1:43am

Wed September 25, 2013
Environment

Wild Weather Tied To Unusual Jet Stream Activity

Originally published on Wed September 25, 2013 4:25 am

Goddard Space Flight Center Scientific Visualization Studio NASA

There has been a lot of extreme weather in the Northern Hemisphere this year, including the recent torrential rains in Colorado, flooding in Europe, bitter cold in Florida and a heat wave in Alaska. And scientists say all of it is related to some odd behavior by the powerful air currents called the polar jet stream.

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1:37am

Mon September 23, 2013
Shots - Health News

How A Pregnant Woman's Choices Could Shape A Child's Health

Originally published on Tue September 24, 2013 6:58 am

Does a glass or two of wine during pregnancy really increase the child's health risks? Epigenetics may help scientists figure that out.
Katherine Streeter for NPR

Pregnant women hear a lot about things they should avoid: alcohol, tobacco, chemical exposures, stress. All of those have the potential to affect a developing fetus. And now scientists are beginning to understand why.

One important factor, they say, is something called epigenetics, which involves the mechanisms that turn individual genes on and off in a cell.

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