There's an added challenge at the 2018 Winter Olympics, according to news reports: An outbreak of norovirus.
The evidence that football leads to brain injury is mounting, but there are two big reasons why it's not likely to change anytime soon.
About 75 million years ago, an odd dinosaur walked from land into the water, where it used its flipper-like arms to swim in the ocean.
Research into training, helmet technology and concussion treatment is striving to make football safer, but will it be enough?
There's nothing quite like the rush of seeing your favorite sports team pull off a win at the last second.
Former NFL player Aaron Hernandez had a severe case of chronic traumatic encephalopathy (CTE), but how did his condition progress so quickly?
Former NFL player Aaron Hernandez had a severe form of the brain disease chronic traumatic encephalopathy (CTE) when he died earlier this year, a new analysis of his brain shows.
Live Science newsletter
Stay up to date on the latest science news by signing up for our Essentials newsletter.