Take a journey with Dr. K as he dives deep into how light controls our bodies and our sleep. We may not consider light to be much more than something that allows us to see but the more we pay attention to where it is, how much of it we get, when we get it and what color it is, the more we are able to control it and then control our biology. Learn about lux a ... Show More
Aug 2025
The Red Light Sleep Secret… and Why You’ve Been Using Melatonin All Wrong
Could the secret to deeper, more restorative sleep be as simple as the right light… at the right time? Dr. Jay Khorsandi unpacks the cutting-edge science of red light therapy, how it interacts with your body’s natural melatonin production, and why timing is everything. Learn the ... Show More
6m 25s
Aug 2025
The Silent Sleep Killer Hiding in Your Mouth
Discover the shocking connection between your oral health and sleep quality that 90% of people don't know about. Dr. Jay Khorsandi reveals how teeth grinding, gum disease, tongue position, and even your bite alignment could be sabotaging your sleep every single night. Learn the h ... Show More
23m 24s
Aug 2025
Essentials: Timing Light for Better Sleep, Energy & Mood | Dr. Samer Hattar
In this Huberman Lab Essentials episode, my guest is Dr. Samer Hattar, PhD, the Chief of the Section on Light and Circadian Rhythms at the National Institute of Mental Health. We discuss how light powerfully shapes mood, sleep, appetite, learning and overall mental health by alig ... Show More
35m 19s
Jun 2023
221. How to optimize sleep
<p>Paul’s episode today is all about sleep. He touches on substances like caffeine, alcohol, and marijuana, how grounding may impact circadian rhythms, and you’ll get an inside look at Paul’s morning and nighttime routine.</p>
<p><br></p>
<p>00:09:00 How we view sleep as a socie ... Show More
1 h
Apr 2022
Using Light (Sunlight, Blue Light & Red Light) to Optimize Health
I describe the mechanisms by which different wavelengths of light impact the cells, tissues and organs of the human body, and how specifically timed light exposure of specific wavelengths can be used to improve sleep, enhance alertness, modulate hormone levels, and improve mood. ... Show More
2h 19m
Oct 2021
Timing Your Light, Food, & Exercise for Optimal Sleep, Energy & Mood | Dr. Samer Hattar
In this episode, I host Dr. Samer Hattar, Ph.D., Chief of the Section on Light and Circadian Rhythms at the National Institute of Mental Health. Dr. Hattar is a world-renowned expert on how viewing light at particular times adjusts our mood, ability to learn, stress and hormone l ... Show More
2h 12m
Jun 2022
Circadian health: Dr. Samer Hattar explains how light exposure affects your sleep, digestion, and exercise
<p>On this week’s episode we take an in-depth look at the science behind your circadian rhythm and how light exposure affects your body. WHOOP VP of Performance Kristen Holmes sits down with Dr. Samer Hattar, a world-renowned expert in the field of circadian health, who is credit ... Show More
43m 10s