The Diary Of A CEO with Steven Bartlett
The Diary Of A CEO with Steven Bartlett

Fat Loss Scientist: It’s Easy To Lose Weight, But Here’s Why You WON’T Do It! | Dr Andy Galpin

August 13, 2026

AI Summary

5 min read

Dr. Andy Galpin, a professor of human bioenergetics who has worked with elite athletes across every major sport, opens the conversation with a striking statistic: 70 to 80 percent of people with clinical sleep apnea go undiagnosed. For women, that number jumps to 90 to 95 percent. This sets the tone for an episode that is less about quick fixes and more about identifying the hidden constraints that keep even motivated people from reaching their health and performance goals.

The Sleep Problem: More Than Just Routine

Galpin argues that the standard advice—sleep in a cold, dark, quiet room—is necessary but insufficient. The real challenge is that our environment has changed faster than our biology. The world is physically brighter (NASA satellite data confirms "sky glow" from urban light pollution), louder (urban baseline noise is 60-70 decibels versus the ideal 35), and more demanding of our attention at all hours.

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What you'll learn

  • 1 Fat Loss Scientist: It’s Easy To Lose Weight, But Here’s Why You WON’T Do It! | Dr Andy Galpin
  • 2 (00:51) **The Sleep Evidence Table** - Galpin introduces a table of sleep aids ranked by scientific evidence, starting with simple foods
  • 3 (01:34) **Why Sleep Disorders Go Undiagnosed** - Shocking statistics on undiagnosed sleep apnea and why it matters
  • 4 (03:19) **Galpin's Core Mission** - Why he does what he does after 20 years of elite performance work
  • 5 (06:06) **Most Common Client Problems** - The top issues people bring to a performance scientist
  • 6 (08:14) **Sleep Apnea Explained** - What it is, why it's missed, and why anatomical assumptions are wrong
  • 7 (10:57) **How To Know If You Have A Sleep Problem** - Practical diagnostic steps for real people

+ Full timestamped outline available in the app

Show Notes

Performance Scientist Dr Andy Galpin reveals the BIGGEST sleep mistakes ruining your health, how to build better energy every day, why your sleep tracker could be making things worse, and whether health optimisation can actually backfire!

Dr. Andy Galpin is a Professor of Kinesiology and Executive Director of the Human Performance Center at Parker University. He has spent over 2 decades working with Olympic gold medallists, world champions, professional athletes, military special forces, and also hosts the Perform with Dr Andy Galpin podcast. 


He explains: 
◼ Why millions unknowingly have a sleep disorder that's silently damaging their health
◼ The morning routine that resets your body clock for better sleep at night
◼ The truth about melatonin, and why most people are taking it the wrong way
◼ The simple sleep tests you can do at home before visiting a specialist
◼ Why waking up exhausted after 8 hours could be a warning sign


Independent Fact Check: https://stevenbartlett.com/wp-content/uploads/2026/08/DOAC-Andy-Galpin-Independent-Research-Further-Reading.pdf


Chapters

  • 00:00:00 Why do you do what you do
  • 00:03:38 What goals bring people to you?
  • 00:07:30 Health anxiety and over-optimising
  • 00:08:33 Sleep disorders are a health crisis
  • 00:10:29 Does sleep apnea disrupt sleep?
  • 00:14:20 Why is sleep apnea so common?
  • 00:15:17 Do I have a sleep issue?
  • 00:18:28 Pros and cons of wearables
  • 00:21:20 What causes a high resting heart rate?
  • 00:21:48 Why is sleep getting worse?
  • 00:22:58 Morning light and light pollution
  • 00:25:16 How much does sound matter?
  • 00:26:51 Best evidence-based sleep supplements
  • 00:29:25 Do you recommend melatonin?
  • 00:34:38 Is there a downside to coffee?
  • 00:36:46 What mattress should I sleep on?
  • 00:37:49 The real issue with screen time
  • 00:47:08 Sleeping when you share a bed
  • 00:48:48 Sleeping in new environments
  • 00:49:34 Optimal temperature for sleep
  • 00:55:34 Ads
  • 00:57:32 Energy management for high performers
  • 01:02:35 Steve's cholesterol results
  • 01:07:06 Why healthy people can have an enlarged heart
  • 01:10:20
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