-
'Crypto' Parasite Outbreak in Ohio Pools Sickens More than 100 SwimmersMore than 100 people in Ohio have been sickened with a diarrheal illness linked to swimming in local pools.
-
The 'Doping Arms Race': How Athletes Evade TestingFor as long as athletes have been trying to game the system by doping, officials have been coming up with ways to catch them.
-
Olympic Mystery: Why Did Rio's Diving Pool Turn Green? -
Olympic Form: How Sports Influence Body ShapeNothing represents the peak of physical condition like Olympic athletes, yet they also represent a wide range of body types, shapes and sizes.
-
Rio's Contaminated Water: 7 Infections People Could Get at the OlympicsWhat illnesses might people catch if they swallow some of the water, which is reportedly contaminated with sewage?
-
2016 Olympics: Visit Rio with 360-Degree Videos and Virtual RealityA new project from Google lets you see Rio de Janeiro in 360 degrees.
-
Why the Olympics Actually Won't Cause Zika to Spread EverywhereWill Olympic athletes return to their home countries with more than a medal?
-
Pat Summitt's Death: Why Alzheimer's Disease Is DeadlyHall of Fame basketball coach Pat Summitt died today after a 5-year battle with Alzheimer's disease. But how does the disease kill?
-
5 Key Facts About Brain-Eating AmoebasCountdown A teenager who went white-water rafting in North Carolina contracted a rare, brain-eating amoeba and died. Here are five key facts about these infections.
Countdown
