Nudity is the litmus test for sanity. Sane societies are clothing-optional; they are built on the principle that no one has the right to control the appearance of others. The clothes someone wears or doesn’t wear, the manner in which they style or color their hair and body—these are sacrosanct to the individual.
We were born naked and we will die naked. Our skin requires broad exposure to sunlight in order to synthesize vitamin D, and that alone tells us that the right to be naked is innate. It is a health right.
The importance of being nude in the sun was recognized 150 years ago, when enlightened American doctors advocated sun-baths. Their instincts were right on target. Today the benefits of vitamin D and sunshine are being teased out by scientific studies, and those benefits appear to be extensive and far-reaching. You don’t get them from the small amounts of D added to milk and other products.
Summer sun exposure can result in your skin creating upwards of 20,000 IU of vitamin D in a single day. You can’t get anywhere near this amount from food. A serving of vitamin D fortified milk contains only 120 IU—you would be forced to drink 167 glasses of milk per day to get as much as your skin can make from a few hours of sunshine.
Furthermore, when D is synthesized in the skin from sunlight, it’s impossible to get an over-dose. The human body automatically regulates how much is synthesized based on its needs.
Nor should we forget that there are other benefits of outdoor nudity, both physical and social. This should not be surprising. After all, our bodies evolved to be naked in the world—it is part of our natural inheritance.