Why is nightfall in boys caused?

Nightfall in boys, also known as nocturnal emissions or wet dreams, occurs when the body releases semen during sleep. This is a natural physiological process, often linked to puberty and hormonal changes, as the body adjusts to increased testosterone levels. It can also be influenced by sexual thoughts or dreams, serving as a normal way for the body to relieve sexual tension. Nightfall is a common experience and typically decreases with age.