Topic Guide
What Is Light therapy?
Light therapy is a subject covered in depth across 1 podcast episode in our database. Below you'll find key concepts, expert insights, and the top episodes to listen to — all distilled from hours of conversation by leading experts.
What Experts Say About Light therapy
- 1.Aim for 20-30 minutes of sunlight exposure onto as much skin as possible, two to three times per week, to potentially increase testosterone and estrogen, and enhance mood and feelings of passion.
- 2.Avoid wearing sunglasses or blue blockers during daytime sunlight exposure, as they filter out beneficial short-wavelength (UVB) light crucial for hormone regulation, pain reduction, and mood.
- 3.Ensure sufficient UVB light exposure to the eyes, especially in winter, to activate the sympathetic nervous system and enhance spleen and immune function, leading to better infection combat and faster wound healing.
- 4.Avoid exposure to bright or UVB light from artificial sources between 10 p.m. and 4 a.m., as this can activate a brain pathway that reduces dopamine output and negatively impacts mood.
- 5.Light absorbed by melanopsin cells in the eyes and on the skin influences a wide range of biological processes including seasonal melatonin production, pain tolerance, immune system readiness, and the turnover of stem cells for hair, skin, and nails.
- 6.Melatonin supplementation is generally discouraged by Andrew Huberman due to the common use of super-physiological doses and potential adverse effects on bone mass, gonad maturation, and placental development.