But there is a lot you can do before that, to increase the chance of having a healthy pregnancy and a healthy baby, when the time is right. It can also affect his sex drive libido. Testes need to be a few degrees cooler than the rest of the body to make good quality sperm. If it gets too hot around the testes, they can have problems making sperm.
How Long Does It Take for Sperm to Regenerate? What to Expect
The Truth about Sperm Survival: How Long Do Sperm Live? | Natural Cycles
Sperm are constantly in danger. Once mature, sperm are stored in a long tube called the epididymis where they wait to be ejaculated. Vaginal walls tend to be acidic to protect women from potential infections. During the fertile window, the female creates a sperm friendly fluid that enables sperm to swim up towards the egg. Sperm are not that smart. Many of them get lost in the cervix.
The good news, there are some very tangible lifestyle changes that men can make to improve their sperm health and overall fertility. It is generally known that most men produce millions of new sperm every day. You also might not realize that when sperm are initially formed within the testicles, they lack the ability to swim forward or fertilize an egg until they make their way through the reproductive tract.