Russian tennis star Maria Sharapova isn't competing at the 2016 Olympics. At a March 7 press conference in Los Angeles, she told reporters she'd tested positive for meldonium, a prescription heart drug that improves blood flow. It was banned in January by the World Anti-Doping Agency.
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Parkinson's disease, smoking, certain head injuries and even normal aging can influence our sense of smell. But certain patterns of loss in the ability to identify odors seem pronounced in Alzheimer's, researchers say.
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The Gray Team with Maj. Jennifer Bell (center), who ran a concussion clinic, seen in the Helmand province of Afghanistan in 2010: Col. Michael Jaffee (from left) , Capt. James Hancock, Col. Geoffrey Ling, Lt. Col. Shean Phelps and Col. Robert Saum.
Courtesy of Christian Macedonia
Ian Burkhart prepares for a training session in Columbus, Ohio. To move muscles in Burkhart's hand, the system relies on electrodes implanted in his brain, a computer interface attached to his skull, and electrical stimulators wrapped around his forearm.
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Paul Hornback was a senior engineer and analyst for the U.S. Army when he was diagnosed with Alzheimer's disease six years ago at age 55. His wife, Sarah, had to retire 18 months ago to care for him full time.
Courtesy of the Hornbeck family