Man in underwear — AliExpress.com
Men’s underwear
Make sure it’s not too tight as research has shown that constrictive undergarments can affect elements of health including circulation, continence and reproduction.
A research by the United Kingdom’s National Institute for Health and Clinical Excellence found that wearing constrictive underwear “is a greater inhibitor to sperm motility than other lifestyle choices such as consuming alcohol or smoking tobacco.” Essentially, tight underwear increases temperatures around the scrotum, and this can inhibit sperm production.
