Effect of different types of textile fabric on spermatogenesis: an experimental study - PubMed
The effect of different types of textile fabric on spermatogenesis was studied. Twenty-four dogs were divided into two equal groups, one of which wore cotton underpants and the other polyester ones. Seven dogs wearing nothing were used as controls. The und...
Guys with polyester boxers and no children are down voting.
Commando it is, well it's been that way for me for a very long time
This is true. Why's it downdooted?
Effect of different types of textile fabric on spermatogenesis: an experimental study A Shafik. Urol Res. 1993. https://pubmed.ncbi.nlm.nih.gov/8279095/
Carrying a cellphone in your pocket does wonders for your swimmers as well.