Although there are many bald celebrity icons like The Rock, Jeff Bezos, the Dalai Lama, and Shaquille O'Neal, losing your hair is not something men aspire to. We asked a dermatologist to explain the scientific reasons that some men lose their hair. Dr. Jennifer Chwalek is a Board Certified dermatologist at Union Square Laser Dermatology in New York. Chwalek explained that hair loss is not directly related to low levels of testosterone. Going bald is largely determined by genetics, and how sensitive a person's hair follicles are to a byproduct of testosterone called dihydrotestosterone.

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Why Some Men Go Bald