​Professional Articles, Links supporting light as medicine.

Skin exposure to UVB light induces a skin-brain-gonad axis and sexual behavior: https://bit.ly/3MbtbeT
Skin Exposure to Ultraviolet B Rapidly Activates Systemic Neuroendocrine and Immunosuppressive Response: https://bit.ly/36nmojd
A visual circuit related to the periaqueductal gray area for the antinociceptive effects of bright light treatment: https://bit.ly/3xutcXo Light exposure during sleep impairs cardiometabolic function: https://bit.ly/3xykAPq
Light-emitting diodes in dermatology: A systematic review of randomized controlled trials: https://bit.ly/3viUlJW
Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring: https://bit.ly/3vwHJPQ
Weeklong improved colour contrasts sensitivity after single 670 nm exposures associated with enhanced mitochondrial function: https://go.nature.com/3rA6IjT
​Red light: A novel, non-pharmacological intervention to promote alertness in shift workers: https://bit.ly/3MfBbvI
Gamma Entrainment Binds Higher-Order Brain Regions and Offers Neuroprotection: https://bit.ly/3vqkgzB

Describes 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. And how red light can be used to offset age-related vision loss and provide neuroprotection. 

Timestamps 
  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 Feedback, Spotify Reviews, Apple Reviews, Sponsors, Patreon, Thorne, Instagram, Twitter, Neural Network Newsletter, Brain-Body Contract