How does good, natural, full-spectrum light work and what can it do for you? It favorably influences your immune system, your hormones, the formation of vitamin D, the absorption of calcium and phosphorus, your ability to pay attention and much more.
To obtain the health benefits of light you should spend at least a half hour a day outdoors in natural light and/or obtain special broad spectrum lights for your home and office. These lights, which fit into standard flourescent fixtures, can be purchased in garden supply stores, hardware stores, some lighting departments and health food stores.
(Source: Tired – So Tired and the ‘Yeast Connection’ by William G. Crook, M.D.)