Not having sex or masturbating enough.
No, its just a dream. It may cause you to involuntarily orgasm though, which brings the term wet dream in.
no and you have nothing to worry about its just a part of life
Some say masturbating can prevent wet dreams, but at the end of the day, if your body wants to "let off steam", it will!
Wet dreams, or 'nocturnal emissions' occur when the body releases semen while asleep, and can (but not always) be linked to an erotic dream or even just friction from moving in your sleep. The signs...