Tonight, while you sleep, your body is supposed to produce a hormone that fights cancer, regulates your metabolism, and repairs everything that broke down during the day. It's called melatonin. There's a good chance the lights in your home are shutting it off before it can do its job.

Dr. Moore-Ede spent over 20 years at Harvard Medical School studying the biological clock in the human brain. He's credited with discovering it. In this episode, he breaks down the hidden danger of artificial light and its connection to breast cancer, prostate cancer, obesity, diabetes, heart disease, and early death, and why almost nobody knows about it.

We get into:

  • The study that proves the link between light exposure and cancer growth, not just an association
  • Why sleeping with any light on may carry the same risk as working night shift
  • What LED lights are actually doing to your body that incandescent and firelight never did
  • Why the light industry compares to Big Tobacco, decades of evidence and no incentive to change
  • What an ideal day of light exposure actually looks like, morning to night
  • Actionable steps for night shift workers, including military and law enforcement
  • What to look for in blue light glasses (most on the market don't do what they claim)
  • His new book, The Light Doctor, second edition, dropping August 1st


Guest: Dr. Martin Moore-Ede, MD, PhD
Book: The Light Doctor (available at lightdoctor.com)

Follow us: @thefourthphasepodcast

Make Time For Love. MTFL.


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