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An international team of scientists analyzed data from men around the world and found sperm counts declining in Western countries. Hanna Barczyk for NPR hide caption

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Hanna Barczyk for NPR

Sperm Counts Plummet In Western Men, Study Finds

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Girls are much less likely to be diagnosed with autism, but that may be because the signs of the disorder can be less obvious than in boys. And girls may be missing out on help as a result. Sara Wong for NPR hide caption

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Sara Wong for NPR

'Social Camouflage' May Lead To Underdiagnosis Of Autism In Girls

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The defensive mucus of the Arion subfuscus slug has inspired materials scientists trying to invent better medical adhesives. Nigel Cattlin/Visuals Unlimited/Getty Images hide caption

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Nigel Cattlin/Visuals Unlimited/Getty Images

Slug Slime Inspires Scientists To Invent Sticky Surgical Glue

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Senate Majority Leader Mitch McConnell, R-Ky., joined by (from left) Sen. John Barrasso, R-Wyo., Sen. John Thune, R-S.D., and Senate Majority Whip John Cornyn of Texas, discussed health care overhaul with reporters on Capitol Hill Tuesday. J. Scott Applewhite/AP hide caption

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J. Scott Applewhite/AP

Senate Health Care Debate To Dismantle Obamacare Continues

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Patient information can be vulnerable when health care facilities are the focus of cyberattacks. Eric Audras/Onoky/Getty Images hide caption

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Eric Audras/Onoky/Getty Images

Hospitals Face Growing Cybersecurity Threats

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Professional fighter Gina Mazany practices during a training session at Xtreme Couture Mixed Martial Arts in Las Vegas. She well remembers her first concussion — which came in her first fight. "I was throwing up that night," Mazany says. Bridget Bennett for NPR hide caption

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Bridget Bennett for NPR

Female Athletes Are Closing The Gender Gap When It Comes To Concussions

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The microneedle patches developed at Georgia Institute of Technology's Laboratory for Drug Delivery each contain an array of needles less than a millimeter long. Courtesy of Georgia Institute of Technology hide caption

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Courtesy of Georgia Institute of Technology

Glioblastomas are the most common malignant brain tumor. About 12,000 people in the U.S. are diagnosed with the cancer every year. Sherbrooke Connectivity Imaging Lab/Science Source hide caption

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Sherbrooke Connectivity Imaging Lab/Science Source

John McCain Was Diagnosed With A Glioblastoma, Among The Deadliest Of Cancers

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People who think they're more slothlike than peers may change their behavior to actually become less active. Oivind Hovland/Getty Images/Ikon Images hide caption

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Oivind Hovland/Getty Images/Ikon Images

Just Thinking You're Slacking On Exercise Could Boost Risk Of Death

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Tymia McCullough is a poised, pageant-winning 11-year-old from South Carolina. She also happens to have sickle cell anemia and relies on Medicaid to pay for medical care. Liam James Doyle/NPR hide caption

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Liam James Doyle/NPR

Her Own Medical Future At Stake, A Child Storms Capitol Hill

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Researchers find that dementia patients who engage in activities such as gathering photographs and talking about family see improvements in their quality of life and are less agitated. Owen Franken/Getty Images hide caption

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Owen Franken/Getty Images