Testicle Tanning and Perineal Sunning Harriet Hall, M.D. Skeptic

Read More Skeptic 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.