This video describes the affect of sunscreen on vitamin D production in your skin.
New video published yesterday by Discovery Channel. How we make vitamin D and the difference between D2 and D3
Humans are photobiotic “solar beings” — all humans are absolutely dependent on the absorption of vital solar radiation. Noble Prize Laureate Dr. Szent-Gyorgi describes the essential life process as, “A little electrical current sent to us by the sunshine.” Without light there is no health. “We are human photocells whose ultimate biological nutrient is sunlight,” states bioLight Group (bLG) CEO, Ken Ceder. “Every metabolic process, from enzyme reactions to muscular movements to the digestion of food and the burning of fat, is an electro-chemical biological process regulated and augmented by sunlight energy. A reduction of natural light energy causes a slowdown in these processes leading to decreased metabolism, reduced burning of fat, reduced vitality and compromised immunity.”