CamelBak-brand water bottles on display at an outdoor supply store in Arcadia, Calif., in 2008. The company removed BPA from the plastic in its bottles. David McNew/Getty Images hide caption

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Legal Battle Erupts Over Whose Plastic Consumers Should Trust
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Researchers studying brains want to know what's happening in an area called the premotor cortex — the place in the brain that gears up for something the body is about to do, like swimming. Above, Michael Phelps dives off the starting blocks in the final heat of the men's 400-meter individual medley during the 2012 U.S. Olympic Swimming Team Trials in Omaha, Neb., on June 25. Jamie Squire/Getty Images hide caption

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How You Move Your Arm Says Something About Who You Are
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A PET scan of the brain of a person with Alzheimer's disease. U.S. National Institute on Aging/via Wikimedia Commons hide caption

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Gene Mutation Offers Clue For Drugs To Stave Off Alzheimer's
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Common Parasite May Influence Human Behavior
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An artist's illustration of events on the sun changing the conditions in near-Earth space. NASA hide caption

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Twin Probes To Investigate Space Weather Mysteries
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Jeff Hudale, who is autistic, demonstrates a face recognition test at the University of Pittsburgh in 2010. Researchers use eye tracking devices to monitor and record what he is looking at. Rebecca Droke/Pittsburgh Post-Gazette hide caption

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What's Different About The Brains Of People With Autism?
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A working gas well head is fenced in just opposite of a home in Dish, Texas. Dish is about 30 miles north of Fort Worth. David Gilkey/NPR hide caption

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Town's Effort To Link Fracking And Illness Falls Short
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William Reigle has fibrosis, a disease that may be aggravated by nearby fracking. He's one of more than 2 million Pennsylvanians who get their health care from Geisinger Health System. The system wants to use its extensive database of patient records to study the health impact of natural gas production. Maggie Starbard/NPR hide caption

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Medical Records Could Yield Answers On Fracking
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Abby Mahoney, 13, has Asperger's syndrome. She says she has memorized nearly everything there is to know about Star Wars. Her enthusiasm for the subject helped make her the target of a bullying boy. Courtesy of the Mahoney family hide caption

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Children With Autism Are Often Targeted By Bullies
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Researchers studied baboons, including this one, and found that with training, they could distinguish real four-letter English words from four letters that weren't a word. Joel Fagot/Science/AAAS hide caption

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The (Monkey) Business Of Recognizing Words
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Study Warns Of Autism Risk For Children Of Obese Mothers
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Environmental groups say a ban would protect consumers from the health effects of BPA that leaches from products including some soup cans. Chip Somodevilla/Getty Images hide caption

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Feds Reject Petition To Ban BPA In Food
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