The Impact of Cosmetics on Male Fertility.

      Аннотация: Men do not have a "fertile window" because sperm is continually formed and stored in the testicles, ready to be used at any time. There are several theories of why men are more fertile during cooler months. Men used to be the main workers in the family. Much of how the human body functions is based on primal need and genetic programming. Just a few decades ago, men worked extremely hard in the fields, chopping trees, clearing lands, tending animals, and building during the summer months. Sex was the last thing on their minds unless that sex occurred during the morning hours when they were well-rested and, according to science, when sperm levels were highest. There may also be a connection between conception dates and birth dates based on season.

Ключевые слова: cosmetics, Human fertility, Male fertility, reproductive medicine