New studies indicate that piss is the elixir of youth.
and youtube.com/watch?v=tjlbc5IPhgI to watch how it's technically done.
Go to buzzfeed.com/awesomer/survival-tips-from-bear-grylls
for more tips from the master.
Bear Grylls: You tell 'em, Nick. The sun's going down, better Drink My Own Piss. Wait, I'm out of my own piss. Hey Nick
Me : Yeah?
Bear Grylls: I'm out of my own piss..... I better Drink Your Piss, mate.