Interesting... I hope there is more research on that.
I have some synthetic shirts that I am pretty fond of. Not going to give them to the thrift store based on that info.
Probably I might wear one 4-5 hours a week. The rest of the time it’s rock tee-shirts, 100% cotten blend.
I think I am in safe territory, plus I don wan no mo’ kids!
I have read elsewhere that men’s sperm counts are much lower than several years ago. Vax is also harmful, and boys being fed soymilk or other soy products. Also heavy use of marijuana especially as a teenager lowers testosterone.