Relax and you'll last longer.

Tai Chi Chuan is an internal Chinese martial art.
Tai Chi is typically practiced for health and longevity.
Tai Chi is something you should try.
Know why?
It reduces stress,
and stress kills, for real.

Watch this video to get a feel for it.

On a side note: My math tutor in junior high told me that "Tai Chi sped up
is lethal in a fight." He was a huge weirdo.