Huberman Lab
The Science of Healthy Hair, Hair Loss and How to Regrow Hair
Apr 10, 2023
Delve into the fascinating biology of hair and its growth cycles. Discover how stem cells play a crucial role in maintaining healthy hair and what causes it to thin. Learn about effective treatments like minoxidil, microneedling, and the impact of hormones on hair loss. Uncover the connection between stress and hair health, as well as the importance of blood flow and nutrients for regrowth. Get insights on debunking myths about hair loss, making informed choices, and exploring diverse regrowth strategies.
02:00:45
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Quick takeaways
- Hair growth is a complex process influenced by hormones like DHT that can shorten the growth phase and prolong hair loss.
- Mechanical and chemical treatments like minoxidil, tadalafil, PRP, microneedling, and ketoconazole can increase blood flow and support hair maintenance and growth.
Deep dives
Understanding Hair Growth and Stem Cells
Hair growth is a complex process involving stem cells that give rise to the proteins and pigment in the hair. Each hair has its own stem cell niche that determines its growth duration. Hairs on the head can grow for 4-8 years, while eyebrow hairs have a much shorter growth phase. The biology of hair is influenced by hormones like dihydrotestosterone (DHT), which can shorten the growth phase and prolong the hair loss phase. Treatments like minoxidil and low-dose tadalafil increase blood flow to the hair follicles, supporting hair maintenance and growth.
