18 years old is the "peak" age of male sexual function, because the male hormone secretion is the most vigorous at this time.However, due to lack of experience, men of this age may not have the best sexual performance.
15 cm.After 90%of men erected, their penis was about 14-16 cm long, and most of them were 15 cm.However, if men are obese or overweight, their penis will be much shorter.
45 km/h is the speed of male ejaculation.Sperm rushing forward from the vas deferens to the glans, and once it enters the vagina, it slows down sharply. It seems that there are thousands of troops on the four lanes on the same line.Generally, the sperm needs to crawl for 5 minutes to reach the cervix, and then it takes 72 hours to "meet" with the egg.
5 calories.A single ejaculation is equivalent to one sputum, and its calories are about 5 calories."This can be regarded as high -calorie because semen is rich in fructose and biological enzymes." Said Mark Gudstan, a professor of reproductive and urology in Cornell University in the United States.
64 liters.The amount of ejaculation of men is about 2-7 ml each time, and 64 liters can be generated in a lifetime, and many of them are prostate fluid.
10 hours.Switzerland studies have found that about 10 hours after sex, the functional functions of their bodies have completely recovered. The so -called "cannot be in the same room before the contest" is completely fallacy.Of course, with age, some men's recovery time will be extended appropriately, which will take about 12 hours.
(Editor in charge: Doudou)
