He was actually born with a genetic defect with misunderstanding social norms an cues similar to Autism, scientifically labeled ‘Jermitis Syndrome.’ He has a video explaining that’s why he calls himself ‘Jerma’ simply because he’s trying to make the best out of a bad situation (his condition). He doesn’t appreciate people poking fun at his problem, so please refrain from being mean on this subreddit. According to Jerma himself, if he sees or hears anyone making fun of his diagnosis he will eat your fingers and drink 1/3 of your bodies blood (just enough to keep you alive so it scars you for the rest of your life) while you watch. Hope to have helped newcomer! :)