Testosterone enlarges the larynx, lowering the voice significantly. Facial hair grows, and head hair often thins. The body’s fat composition changes, with more weight collecting in the torso rather than the hips. It also allows for greater muscle growth. For many, these changes are mostly irreversible. For most women, large doses of testosterone also stop ovulation and menstruation. The consequences of artificially pausing the natural female cycle can include permanent infertility, though the data analyzing the long-term effects is extremely limited. Dr. Maddie Deutsch, the medical director of
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