By Annabel Streets

By Allen Carr

By Christopher McDougall and Eric Orton

By Juliet Starrett and Kelly Starrett

By Herman Pontzer

By Daniel Lieberman

By Will Bulsiewicz

By Tim Spector

By Jessie Inchauspé

By Michael Greger

By Michael Greger and Gene Stone

By Vaclav Smil

By Michael Pollan

By Dr Deepak Chopra

By Dr Robert Lustig

By Christopher McDougall

By Bill Gifford and Peter Attia

By Micki Havard

By Carleigh Bodrug

By Tim S. Grover

By Tim Spector

By Victoria Black and Gen Davidson

By Timothy Ferriss

By Sandor Ellix Katz

By Steven Kotler

By Katarina Cermelj

By Niki Bezzant

By Dr Dr Michael Mosley

By Will Bulsiewicz

By Dr Catherine Itsiopoulos

By Emeran Mayer

By Annie Grace and William Porter

By Kane Brisco

By Timothy Ferriss

By Chris van Tulleken

By MD, Steven R. Gundry

By John Seymour

By Ben Carpenter

By Prof. Roy Taylor

By B. K. S. Iyengar

By Johann Hari

By David Goggins

By Selene Yeager and Stacy T. Sims, PhD

By Kay Allinson and Kate Allinson

By Selene Yeager and Stacy T. Sims

By Dr Michael Mosley

By Justine Pattison and Dr Clare Bailey

By Dr Mary Claire Haver

By Wim Hof