Topic: Uvb

Peter Cowan describes the software tools he developed for Sunlight is Life, which help users track UV timing, UVB availability for Vitamin D, and sunset schedules. The goal is to provide a "bare minimum protocol" for people to align their lives with natural light cycles without over-analysis. The segment concludes with Cowan providing his website information for further updates on the 49ers investigation.

UVB light exposure to the eyes and skin triggers the production of Pro-opiomelanocortin (POMC) in the hypothalamus. While blue light can stimulate POMC in the pituitary gland to produce cortisol (ACTH), only UVB light unlocks the full repertoire of ten cleavage products. Chronic blue light exposure without UV balance leads to extended cortisol levels, which can promote catabolic tissue breakdown and systemic insulin resistance.

Jolie introduces the concept of a "solar callus," a natural skin protection built through early morning infrared exposure that prepares the skin for midday UV rays. She points to indigenous tribes, like the Hadza, who spend all day in the sun without developing skin cancer or wrinkles. She emphasizes that blocking light with sunglasses, contacts, and sunscreen prevents the body from receiving vital time codes.