IF YOUR BODY SUDDENLY JERKS WHILE FALLING ASLEEP, THIS IS WHAT IT MEANS
A hypnic jerk, additionally called a soporific jerk or a sleep begin, is associate involuntary twitch of muscles that happens once someone is starting to nod off, i.e. the soporiferous state. This state is once someone moves from consciousness into state of mind. Usually, individuals awake for an instant when experiencing a hypnic jerk with