The way Hof explains it, humans must have evolved with an innate ability to resist the elements. Our remote ancestors marched across endless expanses of frosty mountains and navigated parched deserts long before they invented the most basic footwear or animal-skin coats. While technology has made us more comfortable, the underlying biology is still there, and Hof believes the key to unlocking our lost potential lies in re-creating the sorts of harsh experiences our ancestors would have faced.
