Uploaded July 2026 | Updated September 2026, 1 week ago

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Deep dive here: staycuriousmetabolism.substack.com/p/how-i-hacked-my-girlfriends-brainwith

Can sunlight really influence testosterone levels? This video explores a self-experiment alongside research suggesting that UVB exposure can increase testosterone in both humans and animals, while also examining a possible evolutionary explanation for why this effect may exist. For the full mechanisms, limitations, and nuance, read the long-form breakdown linked above.

#Testosterone #Sunlight #Hormones #MensHealth #UVB #Longevity #StayCurious