Medical question
Right before falling asleep, in that place I call the twilite zone. (I like that place but trying to extend your time in it takes you right out of it.) I sometimes experience a body jerk, not always the whole body, sometimes just my arm or a leg but pretty often the whole body. I’ve talked to enough people to know It happen to most people once in a while… Now I figure it’s some kind of reflex. I’d like to know what triggers it and what is it called.
I know darn well some Doctor somewhere discovered it and names it.
I’ve tried looking it up but I can’t figure out what to put in a search to even get me close to an answer.