Essentials: Using Light to Optimize Health
In this Huberman Lab Essentials episode, I explore how different wavelengths of light affect the human body and how light exposure can improve sleep quality, mood and daytime alertness while supporting healthy hormone regulation.
February 26, 2026
42 min
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384 of 417

February 26, 2026
Essentials: Using Light to Optimize Health
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Andrew Huberman Episodes Around February 26, 2026
Episode 384 of 417 — walk the feed in the order it was published.
42:30This episodeEssentials: Using Light to Optimize Health
Summary
In this Huberman Lab Essentials episode, I explore how different wavelengths of light affect the human body and how light exposure can improve sleep quality, mood and daytime alertness while supporting healthy hormone regulation. I also discuss the therapeutic use of ultraviolet and infrared/red light for a wide variety of benefits, including improved skin health and offsetting age-related vision loss. I explain the biological mechanisms behind these light-based therapies and offer practical tools that listeners can use to improve both their mental and physical well-being.
Read the episode show notes at hubermanlab.com.
Thank you to our sponsors
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Timestamps
(00:00:00) Light
(00:00:47) Physics of Light
(00:01:57) Light & Body, Rods & Cones, Skin, Seasons & Melatonin
(00:05:01) Melatonin Supplements?, Tool: Seasonal Sun Exposure
(00:08:32) Sponsor: ROKA
(00:09:47) Tool: Melatonin Levels & Reduce Night Light
(00:10:31) Light, UVB, Skin Exposure, Testosterone & Estrogen, Fertility
(00:13:54) UVB Light & Improved Pain Tolerance
(00:16:10) Tool: Daily Sunlight Exposure Protocol; Blue Blockers
(00:18:25) Sponsor: AG1
(00:19:16) Seasonal Affective Disorder (SAD), Year-Round Sunlight Exposure
(00:21:24) Enhanced Immune Function & UVB Light, Tool: Winter Light Exposure
(00:23:45) Light, Wound Healing, Hair & Nail Growth
(00:25:11) Tool: Mood, Dopamine & Avoid Nighttime UVB Light
(00:27:46) Sponsor: Function
(00:29:25) Red Light Therapy, Infrared Light, Acne, Wound Healing & Scars; Mitochondria
(00:33:06) Offset Age-Related Eyesight Decline, Red Light
(00:37:22) Tool: Red Light Protocol, Frequency & Timing
(00:40:02) Red Light for Shift Workers
(00:41:42) Recap
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