Sports

Tim Peake completes the London Marathon from space

Why Ping-Pong is good for your brain

New blood test detects concussion up to a week after injury

How to run a beer mile

Gymnast with 1 leg defies the odds

Mom of 4 smashes treadmill-running record

Soccer great Brandi Chastain agrees to donate her brain to concussion research

Why are girls more susceptible to concussions than boys?

This woman tried crossing the Irish Sea in a giant inflatable hamster wheel

Budweiser's in-your-face Super Bowl ad

8 of the best 'Super Bowl 50' commercials you can watch right now

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