Testosterone and Hair Loss: What's the Real Connection?
Hair loss is often blamed on testosterone, but the real story is more complicated. Testosterone itself is not usually the direct cause of thinning hair. Instead, the way the body converts testosterone into another hormone, combined with genetics and follicle sensitivity, plays a much larger role. Understanding this connection can help separate common myths from the factors that actually influence hair growth and loss. How DHT Triggers Follicle Shrinkage Testosterone can be converted into dihydrotestosterone (DHT) by an enzyme called 5-alpha reductase. DHT is a potent androgen that can affect certain hair follicles, particularly those located around the hairline, temples, and crown. When genetically sensitive follicles are exposed to DHT over time, they may gradually become smaller. This process, known as follicular miniaturization, causes hairs to grow thinner, shorter, and less noticeable. Eventually, affected follicles may produce very little visible hair. This is why the question do...