Cold Shower

Inj4ns Idee.
 * http://collegetopia.co/why-i-took-the-30-day-cold-shower-challenge-and-why-you-should-too/
 * http://www.cold-showers.com/a-doctors-view-on-cold-showers/
 * http://gettingstronger.org/2010/03/cold-showers/
 * http://www.highexistence.com/topic/cold-shower-challenge/