The refractory period is an important concept in human biology that refers to the time between two consecutive erections. During this period, a man cannot achieve another erection until the previous...
The human penis is an organ located in the male reproductive system that serves multiple functions such as urination, sexual intercourse, and ejaculation. It is a part of the external genitalia and...
Research shows that men may experience spontaneous erections even when they are asleep, usually during REM (rapid eye movement) sleep. These involuntary erections occur because of increased blood...
Blood flow to the genitals is one of the earliest signs of arousal — occurring within seconds.
When an individual becomes sexually aroused, their body releases chemicals such as adrenaline,...
The male body produces around 1,500 sperm per second — about 130 million a day. This means that a man can produce enough sperm to fertilize an egg every day for about five years without repeating any...