Discovering the motivations behind the extremes of human achievement of body and mind.
Freediver Christian Redl was looking for a new challenge, so he invented his own sport: underwater ice hockey.
Calisthenics is based on how ancient Greek warriors trained and uses bodyweight exercises.
Meet Brooklyn Sittner, a 12-year-old girl who can lift 120 pounds.
A traditional practice – where fearless climbers scale sheer cliff faces – reflects change in China.
'Giving up because you’re uncomfortable will kill your dreams'.
