If you could do one thing each morning to improve nearly every aspect of your health, would you do it? Well my cautiously courageous reader, that one thing is simply plunging yourself into a crisp icy cold shower in the grey hours of the morning. Even the Tony Robbins and Tim Ferriss take cold showers every morning. Still with me? Good! You are quite the little adventurer. This character building activity you so boldly agreed to do does indeed have numerous health benefits at the low cost of a few gallons of water and the bravery of your soul.