Tag: Indoor health

According to scientific consensus, standard glass blocks the ultraviolet B (UVB) rays that are essential for the body's vitamin D production. When considering how much vitamin D can you get through a window, the scientific answer is a conclusive zero.

Approximately one billion people worldwide have a vitamin D deficiency, a condition often linked to insufficient sunlight exposure. This makes many wonder: **does getting sunlight through windows count** for getting your daily dose of the "sunshine vitamin" and other solar perks?