The Natural Contraception State
Everybody knows about female menstrual cycle. Would you know men also have a cycle ?
This cycle called spermatogenesis is a 75 days period which is the required duration for sperm cells maturation and production. As the spermatogenesis is a permanent and continuous phenomenon the cycle cannot normally be noticeable. Here is how it works :
On the male mammals side, spermatogenesis takes place inside the testes which Nature located outside the body in a pouch called scrotum. From this simple fact accompagnied with a special blood circulation mechanism inside the scrotum testes are maintained several degrees cooler than normal body temperature . Those features induce two functional modes for spermatogenesis :
it is enable when testes temperature is under a threshold below human body temperature (by 3 to 4 celsius degrees).
it is disable when testes temperature raises above the threshold during repetitive periods. This puts on hold the sperm cells production.