How to Save the World, by Tom Aikens

Michelin-starred chef Tom Aikens hobbles over to greet me at his eponymous restaurant in Chelsea. He's wearing green Havaianas but his feet are wrapped in white gauze and what looks like masking tape.  Up close they are beet red, bruised, and absolutely battered. One of his toenails is oozing with pus and about to fall off. The soles of his feet have had three layers of skin ripped off.
S: What have you gotten yourself into now?T: Marathon des Sables. Six marathons in five days in the...