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perineal sunning

Testicle Tanning and Perineal Sunning

Harriet Hall, M.D. examines the evidence that “testicle tanning” or red light therapy increases testosterone levels. She also discusses a related fad: butthole tanning, also known as butt-chugging, but better described as perineal sunning. Why do people fall for these fads? The answer is complex.

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