Episode 210: Greg Potter - Circadian Rhythm masterclass

This episodes guest is Greg Potter from Humanos.me

Greg Potter's PhD work at the University of Leeds on sleep, diet, and metabolic health was featured by the likes of the BBC World Service, the Washington Post, and Reuters. Greg has a BSc and an MSc in Exercise Physiology from Loughborough University, where he coached a sprinter to four gold medals at the European Championships. Greg has also worked with groups such as The United States Naval Special Warfare Command on health and performance optimisation.

Greg also likes science, mountains, diving, sunshine, techno, and fish pie!

On this episode Greg and I discuss:

  • Greg's background 
  • I ask Greg how he got into circadian biology research
  • I ask Greg to explain what is a circadian rhythm?
  • I ask Greg how detrimental is artificial light, central heating within homes, and available of out of season foods on our health
  • I ask Greg to explain the concept of "social jet lag"
  • I ask Greg about the use of rodent models for sleep research and inferring these results to humans
  • I ask Greg would ape models be better to use for sleep research?
  • I ask Greg about Blind peoples circadian regulation 
  • I ask Greg about peripheral clocks and their influences
  • I ask Greg about the detrimental impact of misalignment between the central and peripheral body clocks
  • I ask Greg for his top and current book recommendation
  • And, finally I ask Greg about future topics I want to discuss with him when we do our next podcast - these include - circadian regulation and the microbiome, indoor lighting, light therapy, behaviour change, circadian rhythms impact on blood chemistry and CBC panels, and chronotypes


This was an outstanding episode and I hope you all enjoy it as much as we did!

Stay Strong,



Show Notes:

Website - humanos.me 

Facebook - HumanOS.me

Twitter - @humanOS_me

Twitter - @GDMPotter

Instagram - humanos.me

Instagram - gdmpotter

YouTube - humanOS.me


Podcasts Mentioned:

Underground Wellness Radio

Revolution Health Radio - Why Most People Are Sleep-Deprived and What to Do about It

Interview with Carl Lanore at Superhuman Radio

Sunlight And Fat Metabolism: A New Discovery. Podcast with Peter Light

Sigma Nutrition Radio 213: Greg Potter – Chronobiology & Chrononutrition (Research Breakdown)

Humanos Radio


Research and Articles Mentioned:

Sleep Strategies for Strength, Speed, and Size

Restricted feeding uncouples circadian oscillators in peripheral tissues from the central pacemaker in the suprachiasmatic nucleus

Circadian disruption: What do we actually mean?

High Caloric intake at breakfast vs. dinner differentially influences weight loss of overweight and obese women

Afternoon exercise is more efficacious than morning exercise at improving blood glucose levels in individuals with type 2 diabetes: a randomised crossover trial


Books Mentioned:

The Amazing Liver & Gallbladder Flush


A Short Introduction into Economics 

Why Evolution is True

Sex at Dawn 

People and Resources Mentioned:

Patrick Ward

Dan Pardi

Sean Croxton

Carl Lanore

Peter Light

Frank A.J.L. Scheer, PhD

Prof. Dr. Till Roenneberg

Steven W. Lockley, PhD

Professor Debra J. Skene

Christopher J. Morris

Francesca Damiola

Céline Vetter

Ian MacDonald

Danny Lennon

Joe Rogan

Andrew Weil

Robert Sapolsky

Stephan Guyenet


Show Sponsors:

Ultimate Performance Online Mentorship

To get INSTANT ACCESS to almost 20 hours of World Class online video Strength and Conditioning Information go to upmentorship.com



ALTIS Education


Ultimate Athlete Concepts

Ultimate Athlete Concepts is a multi faceted company, providing the most sophisticated scientific material in sport science. UAC is the worlds leading resource for translated sport preparation educational material. 


National Sports Performance Association

Certified Program Design Specialist

Certified Speed and Agility Coach

Cerfitied Weightlifting Performance Coach

Certified Sports Nutrition Coach


Athletes Acceleration

Complete Warm Up

Complete Speed Training

Complete Speed Games

Complete Jumps Training

Complete Olympic Lifting

Complete Youth Training

Complete Guide to Training the Female Athlete

Complete Core

Complete Sports Conditioning 

Complete Sports Nutrition

Complete Program Design

Sports Camp Empire



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