Topic Guide
What Is Circadian rhythms?
Circadian rhythms is a subject covered in depth across 2 podcast episodes 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 Circadian rhythms
- 1.Aim for 20-30 minutes of sunlight exposure to as much skin as possible, two to three times per week, to increase testosterone, estrogen, mood, and pain tolerance.
- 2.Avoid wearing sunglasses or blue light blocking glasses outdoors during the day, as they filter out beneficial UVB light necessary for hormone regulation and pain reduction.
- 3.Exposure to bright artificial light, especially UVB wavelengths, between 10 PM and 4 AM can negatively impact mood by reducing dopamine output.
- 4.Sufficient UVB light, particularly to the eyes, activates the sympathetic nervous system and enhances immune function by deploying cells from the spleen.
- 5.Natural melatonin production, inhibited by light, plays a critical role in bone mass, gonadal maturation, and placental development, making high-dose melatonin supplementation unadvisable without medical consultation.
- 6.UVB light exposure to the eyes and skin accelerates wound healing and the turnover and growth of hair, skin, and nails.