Interesting, technical and advanced phone interview with Dr. Alexander Wunsch on the Sun, Circadian Rhythms and Light Therapies. Dr. Alexander Wunsch is a physician in Germany of holistic medicine and photobiology. He is the CEO of medical lighting consulting in Heidelberg Germany.
This nearly 2 hour long interview cover the sun, light and it’s health properties, the circadian rhythm, and rules for daily healthy sunlight exposure.