2min chapter

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The Science of Healthy Hair, Hair Loss and How to Regrow Hair

Huberman Lab

CHAPTER

The Effects of Androgens on Hair Growth

The two major breaks on hair growth that we want to think about are PDE, which is a phosphodiesterase and TGF-beta-2. Young men have higher levels of testosterone than old men, right? Well, although some older men in their 40s, 50s, even 80s maintain testosterone levels similar to many men in their 20s but most don't. Women, too, have testosterone. In fact, women have higherlevels of testosterone than they do estrogen. A healthy woman has higher levels ofosterone than she does estrogen.

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