Paralympian Tatyana McFadden sets her sights on 7 gold medals in Rio

9 of the most inspiring marathon moments

Why millionaire pitcher Daniel Norris lives in a van

Meet 10 refugees who will compete in Rio under the Olympic flag

How to overcome your fear of water

9 inspiring renditions of the national anthem

Why moon bears need a moment in the sun

Why don't we know more about running injuries?

The world's greatest running shoe could soon come from Kenya

What can rams and woodpeckers teach us about concussions?

Will a man-made meteor shower open the Tokyo Olympics?

Abandoned pup becomes team's bat dog