If your body suddenly jerks while you’re falling asleep, here’s what it means

The Science Behind Hypnic Jerkys

Although there’s no complete explanation for how and why hypnic jerks occur, two theories suggest some causes. One holds that hypnic jerks are the result of the nervous system’s natural slowing down during sleep.

The explanation lies in the changes in muscle tone that occur as a result of slowing breathing and heart rate, and the natural drop in body temperature. In this transition, theory suggests that contractions are a response to this drop.

The other theory suggests that this happens because of the rapid relaxation of the muscles, which the brain interprets as if you were actually falling. In response, it signals the muscles to contract, so you can protect yourself.

However, researchers believe that this body response is influenced by external factors, such as caffeine, tobacco, sleep deprivation, and is even associated with the use of drugs like Adderall and Ritalin, which can have similar effects.

Is it normal to have hypnic jerks every night?

These jerks are sudden and involuntary, meaning you have no control over them. Some people may feel frightened, while others may feel like they’re falling. In any case, it’s considered perfectly normal to experience hypnic jerks during sleep. “It’s a kind of signal to the body that it’s entering sleep mode. It’s not a disorder. It’s actually a natural phenomenon,” says Dr. Rustgi.

While it may not be harmful, this involuntary contraction, which usually occurs just as you’re falling asleep, can disrupt your sleep. So, it’s advisable to stop it somehow. I wonder if there’s a way to reduce or stop hypnic jerks? Well, yes! There are a few ways.

How to stop hypnic jerks when falling asleep?