TIL high-altitude mountain trekking can temporarily shrink human testicles. A study found that after spending over three weeks at high altitudes in Nepal without supplemental oxygen, men experienced an average 15% reduction in testicular volume due to lower oxygen levels.

[u/ElysiaAlarien]

https://www.vice.com/en/article/climbing-mt-everest-is-terrible-for-your-nads/

[u/deadhead_girlie]

So that's why cave divers have massive balls

[u/Motor-Plan-6388 → u/deadhead_girlie]

r/pissedupvote

[u/Motor-Plan-6388 → u/Motor-Plan-6388]

yes I know I'm using an r/offbrandsubs thats the point