The sperm are small, but they contain many unexplored secrets.
The report posted on the Fox News website in the US will help us understand some scientific knowledge about sperm.
- Sperm is produced in the testicles, it takes up to 10 weeks to mature.
- Adult sperm stored in the epididymis or " testicular bank " is located in the upper part of the testicle. Storage time can be up to two weeks.
- In the total amount of sperm, sperm accounts for 5%, other liquid components are responsible for providing nutrition to sperm and ensuring sperm enters the female reproductive system in a convenient way.
- Healthy men can produce between 70 million and 150 million sperm per day.
- Sperm can exist for five days in female womb.
- The movement speed of sperm carrying Y chromosome is faster than that of X chromosome sperm.
- Human sperm is 55 microns long (1 micron = 1 / 1,000mm), almost half the diameter of a human hair.
- Sperm just moves forward, not backward.
- Normal sperm consists of parts such as head, middle and tail. Unusual sperm will have two head or two tail parts.
- Sauna can reduce sperm count in men, because too high temperature will affect normal sperm development.
