Is this true if we masturbate nightfall(semen discharges at night when we are asleep) does not occur?

Becoming a man: If you do not have a partner, you will either masturbate or have nocturnal emissions ("nightfall"). Anybody who has told you that either of these is dangerous to your health is misinformed or worse. I'm going to trust that you're not obsessed with erotica to the point of missing out on other things you need to do. Dad might be a good guy to talk to about the whole process of becoming a man.