Sperm wear hard hats and live for days? It's true, and that's just the beginning.
The average fertile man is said to produce 1500 sperm cells a Speaking to BellyBelly, Dr Orr lists some of the surprising benefits of sperm.
Some people worry that the semen will travel into the stomach, and somehow make its way to the uterus or vagina, causing a pregnancy.
Belly fat. University studies done in Texas, Australia, and Sweden connected high a man converts testosterone to estrogen, which can lead to low sperm count.