From eight-time Mr Olympia Ronnie Coleman and Ross Edgley, the first person to swim around Great Britain, to UC Berkeley sleep scientist Matthew Walker, drugs researcher Professor David Nutt, ATHLEAN-X founder Jeff Cavaliere, Knees Over Toes Guy Ben Patrick and Bulletproof founder Dave Asprey: what the human body can do.

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Sleep, the brain and recovery

Matthew Walker, professor of neuroscience and psychology at UC Berkeley, argues that sleep is the foundation of health. He explains how a lack of sleep affects diet and exercise, why he sees alcohol as a poor aid to sleep and why, in his view, the shorter your sleep, the shorter your life. Professor David Nutt, a neuropsychopharmacologist, makes the case that alcohol is the most damaging drug in the world. Brain coach Jim Kwik shares the memory techniques he teaches. Dr Daniel Stickler, a former vascular surgeon, explains why he came to believe medicine should focus on long-term health rather than treating illness as it arises.

Strength, size and endurance: the limits of performance

Ronnie Coleman, who won Mr Olympia a record eight times, tells how he overcame adversity to reach the top of bodybuilding, and fellow eight-time champion Lee Haney explains how he built his career. Ross Edgley explains how he trains for strength and endurance at once, and describes the demands of swimming around Great Britain. David Millar, who rode 12 Tours de France and won five stages, talks openly about performance-enhancing drugs and his return to racing clean. A compilation episode brings together David Goggins, Dorian Yates, Eddie Hall and Ross Edgley on why they believe most people quit long before their real limit.

Training science and biohacking

Jeff Cavaliere, a physical therapist and founder of ATHLEAN-X, argues that training should be built on science, not habit. Ben Patrick, the Knees Over Toes Guy, explains how he went from battered knees to bulletproof ones. In his first London Real appearance, Dave Asprey sets out the thinking behind Bulletproof Coffee and intermittent fasting, and why he optimises his life for performance. Ben Greenfield shares his approach to biohacking and endurance. Wim Hof returns to discuss the research he cites on breathwork, cold exposure and inflammation. For practice rather than theory, see our Movement interviews.

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Human Body on London Real: common questions

Who has London Real interviewed about the human body? Brian Rose has interviewed Matthew Walker, Ronnie Coleman, Lee Haney, Ross Edgley, David Millar, Jeff Cavaliere, Ben Patrick, Dave Asprey, Ben Greenfield, Wim Hof, Professor David Nutt and Dr Daniel Stickler, among others.

What do the guests say about sleep? Matthew Walker argues that sleep affects almost everything, from appetite and training to how long we live, and that alcohol harms sleep rather than helping it. These are his views as a sleep researcher, not medical advice, so speak to a doctor about any sleep problem.

Do the episodes cover elite performance? Yes. Ronnie Coleman and Lee Haney talk about bodybuilding at the highest level, Ross Edgley about extreme endurance and David Millar about professional cycling, including his own experience of performance-enhancing drugs.

Are the full human body episodes free to watch? Yes. Every full-length interview on this page can be watched free on londonreal.tv.

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