Coming from a surfers perspective, I figured the citizens of Swellinfo might enjoy reading this interview as much as i did.

Stig Severinsen, holds the Guinness World Record for the longest breath hold of 22 minutes, AND for the longest freedive under ice on a single breath of air (236 feet) in speedos. four time free-diving world champion, and holds a PhD in Medicine.

his question and answer based interview can be found here

not only is he interesting and informative, but i wanted to share because his techniques can save lives. especially surfers!