Re: SAD. you may want to consider that SAD is a side-effect of a decay or change of molecules in the body produced by sunlight. Skin exposed to sunlight produces D3, because of a UVB reaction in skin cells. The lack of available D3 in her blood stream, and thus her brain may be the physical component producing the psychological phenomena of SAD.
Re: SAD. you may want to consider that SAD is a side-effect of a decay or change of molecules in the body produced by sunlight. Skin exposed to sunlight produces D3, because of a UVB reaction in skin cells. The lack of available D3 in her blood stream, and thus her brain may be the physical component producing the psychological phenomena of SAD.