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. I also explain the use of ultraviolet and
infrared phototherapies to relieve pain increase testosterone and
estrogen levels; improve skin health, appearance and wound healing;
and how red light can be used to offset age-related vision loss and
provide neuroprotection. Throughout the episode, I describe the
mechanisms of light-based therapies and actionable tools that
people can use positively impact mental and physical health. For
the full show notes, visit hubermanlab.com. Thank you to our
sponsors AG1: https://athleticgreens.com/huberman LMNT:
https://drinklmnt.com/hubermanlab Waking Up:
https://wakingup.com/huberman Momentous:
https://livemomentous.com/huberman Timestamps (00:00:00) Using
Light to Improve Health (00:04:49) Sponsors: AG1, LMNT (00:09:56)
Physics of Light, Electromagnetic Energy (00:12:23) Wavelengths of
Light (00:15:38) How Light Penetrates Tissues (00:20:13) Light
& the Body: Direct & Indirect Signals (00:28:35) Light,
Seasonality & Melatonin (00:33:40) Melatonin: Regulatory &
Protective Effects (00:38:49) Tools: Optimizing Melatonin Levels
(00:44:49) Sun (UVB light) Exposure, Mating Behavior, Testosterone
& Estrogen (00:58:09) Seasonality, Romantic Passion &
Testosterone (01:02:13) Tool: Skin Sun Exposure & Testosterone
(01:06:13) Light & Improved Pain Tolerance (01:11:55) Protocol:
Sun Exposure & Chronic Pain (01:12:48) Tools: Sunlight (UVB),
Blue-Light Blockers, Seasonal Affective Disorder (SAD) (01:19:44)
Light & Enhanced Immune Function (01:23:30) Tool: Light During
Winter Months (01:26:18) Light Therapies: Local vs. Systemic
Exposure (01:28:54) Tool: Improving Mood, Timing of Natural &
Artificial Light (01:32:44) Light Conditions & Sleep
Optimization (01:39:00) Infrared Light, Skin & Wound Healing
(01:46:00) Infrared Light Therapy & Skin, Low-Level Laser
(Light) Therapy (LLLT) (01:49:20) Infrared Light & Age-Related
Vision Loss (01:59:36) Tools: Infrared Panels, Morning Exposure
(02:05:22) Infrared Light at Night, Shift Work (02:08:35) Light
Flicker Phototherapy & Neuroprotection (02:19:07)
Phototherapies for Health (02:20:50) Zero-Cost Support, YouTube
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