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A woman receives the rVSV-ZEBOV Ebola vaccine at a clinical trial in Conakry, Guinea. The vaccine appears effective after only one shot. Cellou Binani/AFP/Getty Images hide caption

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Cellou Binani/AFP/Getty Images

Ebola Vaccine Hailed As 'Game Changer' In Fight Against The Virus

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Healthy diets help prevent, even reverse, some health conditions. Dr. Dean Ornish believes it can also do the same for cancer. Courtesy of TED hide caption

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Courtesy of TED

Can Healthy Eating Reverse Some Cancers?

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"We have 21st-century medical treatments and drugs to treat cancer, but we still have 20th-century procedures and processes for diagnosis," says Jorge Soto. James Duncan Davidson/TED hide caption

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James Duncan Davidson/TED

What's A Better Way To Detect Cancer?

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Why Peer Pressure Doesn't Add Up To Retirement Savings

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Mineral supplements, ape-style: A female chimp called Kana eats clay in the Budongo Forest of Uganda. A.Schel/Budongo Conservation Field Station/Animal Ecology, Utrecht University, The Netherlands hide caption

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A.Schel/Budongo Conservation Field Station/Animal Ecology, Utrecht University, The Netherlands

The Ensatina salamander, a lungless species common along the U.S. West Coast, is one of hundreds of species of salamanders endemic to North America threatened by an emerging infectious pathogen. Courtesy of Tiffany Yap hide caption

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Courtesy of Tiffany Yap

How 3-D Printing Helps Scientists Understand Bird Behavior

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3-D renderings of four skeletons found buried near the altar of an early church in the Jamestown settlement in Virginia. Smithsonian X 3D hide caption

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Smithsonian X 3D

Bones In Church Ruins Likely The Remains Of Early Jamestown's Elite

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A Yale University study analyzed the experience of 60 million Americans covered by traditional Medicare between 1999 and 2013, and found "jaw-dropping improvements in almost every area," the lead author says. Ann Cutting/Getty Images hide caption

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Ann Cutting/Getty Images

Happy 50th Birthday, Medicare. Your Patients Are Getting Healthier

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Research: Let Your Fingers Stroll Down Yellow Pages' Listings

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A nanosecond pulsed laser beam starts the photoacoustic imaging process. Geoff Story/Courtesy of Washington University in St. Louis hide caption

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Geoff Story/Courtesy of Washington University in St. Louis

A Scientist Deploys Light And Sound To Reveal The Brain

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A daily habit of sugary-sweetened drinks can boost your risk of developing the disease — even if you're not overweight. Ryan Kellman/NPR hide caption

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Ryan Kellman/NPR

Even If You're Lean, 1 Soda Per Day Ups Your Risk Of Type 2 Diabetes

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Giedre (left) and Tal Cohen in March 2013, while Giedre was still healthy. Since then, she's begun having symptoms of Alzheimer's disease. In Giedre's case, the illness is tied to a rare genetic mutation she inherited. Courtesy of Tal Cohen hide caption

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Courtesy of Tal Cohen

Younger Adults With Alzheimer's Are Key To Drug Search

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Women with mild cognitive impairment, which can be a precursor to Alzheimer's, tend to decline faster than men. Lizzie Roberts/Getty Images/Ikon Images hide caption

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Lizzie Roberts/Getty Images/Ikon Images

Women's Brains Appear More Vulnerable To Alzheimer's Than Men's

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The area around the confluence of the Silverthrone and Klinaklini glaciers in southwestern British Columbia provides a glimpse into how the terrain traveled by Native Americans in Pleistocene times may have appeared. David J. Meltzer/Science hide caption

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David J. Meltzer/Science

2 Gene Studies Suggest First Migrants To Americas A Complex Mix

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