Hello sir! am from india ....(age 22).......for the last 3 months regularly, at nights while sleeping sperms is coming involuntarily.......I m very lean&tall GUY!Now i just warn to avoid this situation.I ALSO warns to know y this happens?Because every morning feel very tired & bodypain . I m mentally depressed......please tell me some remedies or suggest me some medicines if it is available... I also heard that coz of this lots of energy & weights will loss.......... Actually I WANA gain some weight ,for that what s the best way?

Summarized question: What causes nocturnal emissions?