Alcohol, probably. South Korea is an entire nation of high-functioning alcoholics. Almost every single day is an excuse to pound liquor.
In fact, the first study I found showing the relationship between alcohol abuse and testosterone and impotence literally used Korea as the case model:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9708857/
**Little addendum:** I spent six months in South Korea and others can likely back this up, I've seen the drinking firsthand. These guys are S-tier drinkers. Soju is a supplement to their breakfast, lunch, and dinner. I went to a "business lunch", and I rarely drink as-is, and the Koreans we went with were pounding shots. It was like half past noon.
In fact, the first study I found showing the relationship between alcohol abuse and testosterone and impotence literally used Korea as the case model:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9708857/
**Little addendum:** I spent six months in South Korea and others can likely back this up, I've seen the drinking firsthand. These guys are S-tier drinkers. Soju is a supplement to their breakfast, lunch, and dinner. I went to a "business lunch", and I rarely drink as-is, and the Koreans we went with were pounding shots. It was like half past noon.
to give you an example SK circumcision rate is 77%
best Korea is 0.1%
Vietnam is 0.2%
it just goes to show you that all the """capitalist""" countries were throughly judified and yet strangely japan is at 9%!
i thought the Islam Nigger invasion had been tame but this is INSANE if Muzzies become 10% of the population that means it will likely end like France and Germany (esp if Kishida implaments hate speech laws)
It's a weird Oriental sex thing, and the numbers have nothing to do with jews or immigrants.
https://mainichi.jp/english/articles/20210903/p2a/00m/0li/007000c
There's always some new fad going around which makes them all feel deeply inadequate, in this case to the point where one in ten of them will pay to have their foreskins chopped off.
So yeah, you could say that.