What Doesn't Kill Us: How Freezing Water, Extreme Altitude, and Environmental Conditioning Will Renew Our Lost Evolutionary Strength

by Scott Carney

Nature gave us the ability to heal ourselves. Conscious breathing and environmental conditioning are two tools that everyone can use to control their immune system, better their moods, and increase their energy.

But what is comfort? It’s not really a feeling as much as it is an absence of things that aren’t comfortable.

Effortless comfort has made us fat, lazy, and increasingly in ill health.