Some people report that
It's normal for the muscles to relax, of course, but the brain gets confused. For a minute, it thinks you're falling. In response, the brain causes your muscles to tense as a way to "catch yourself" before falling down — and that makes your body jerk.
When the body enters a state of deep relaxation in preparation for sleep, this sensation can be misinterpreted by the brain as the body falling and therefore being in danger. So the hypnic jerk knocks you back into full consciousness.
Hypnic jerks or sleep starts are benign myoclonic jerks that everyone experiences sometimes in a lifetime. Although they resemble the jerks of myoclonic seizures, they occur on falling asleep and are just benign nonepileptic phenomena.
Hypnic jerks generally occur during the stage of sleep in which your muscles start to relax and you begin drifting off. During this time, motor areas of the brain can become spontaneously stimulated. Your brain may misinterpret this stimulation as wakefulness during a less-than-seamless transition to sleep.
Sometimes the dreams we have seem so real. Most of the emotions, sensations, and images we feel and visualize are those that we can say we have seen or experienced in real life. This is because the same parts of the brain that are active when we are awake are also active when we are in certain stages of our sleep.
Falling in dreams then waking up
Hypnic jerks are sudden, involuntary muscle contractions that usually occur just as you're falling asleep. It's something that affects 60 to 70 percent of us. The exact cause isn't clear, but one symptom of a hypnic jerk is the sensation of falling.
Many people dream about falling. It's one of the most common recurring dreams. Some people seek out meaning from their dreams. If you often find yourself dreaming about falling, you may be curious about how to interpret it.
Overview. Myoclonus refers to a quick, involuntary muscle jerk. Hiccups are a form of myoclonus, as are the sudden jerks, or "sleep starts," you may feel just before falling asleep. These forms of myoclonus occur in healthy people and rarely present a problem.
Chances are you were experiencing a hypnic jerk – an involuntary contraction and relaxation of the muscles which causes jumping or twitching. Hypnic jerks are known by many different names including sleep starts, night starts, hypnagogic jerks, and myoclonus jerks.
It also may be facilitated by fatigue or sleep deprivation. However, most hypnic jerks occur essentially at random in healthy people. Nevertheless, these repeated, intensifying twitches can cause anxiety in some individuals and a disruption to their sleep onset.
Most experts believe that lucid dreams are the rarest type of dreams. While dreaming, you are conscious that you are dreaming but you keep on dreaming. According to researchers, 55 percent of people experience these types of dreams at least one time in their life.
A hypnic jerk is the feeling triggered by a sudden muscle twitch, causing the feeling of falling while sleeping or dreaming. Hypnic jerks typically occur moments before the first stage of sleep. About 70% of people have experienced hypnic jerk.
We Dream Every Night
Brain activity in the forebrain and midbrain is particularly intense during rapid eye movement (REM) sleep, which is when we dream. During a typical lifetime, people spend an average of six years dreaming.
Dreams can get pretty weird sometimes. When you wake up from one that was particularly bizarre or vivid, you might feel relieved it was only a dream, one you'll never have to experience again. Well, that last part might not always be the case. Some dreams come back not just once, but again and again.
Why do you wake up at the scariest part of a dream? In REM sleep, our brain activity is near waking levels, but our body remains "asleep" or paralyzed so we don't act out our dreams while lying in bed. Since our brain is so active during this stage, it can sometimes scare us into waking up, essentially.
"For many people, the adrenaline and excitement experienced upon realizing that they are dreaming is enough to wake them," Backe said. "However, if this is not the case and you are 'stuck' in a bad dream, doing something particularly jarring — for example, jumping off of a cliff in your dream should do the trick."
Lucid dreams are when you know that you're dreaming while you're asleep. You're aware that the events flashing through your brain aren't really happening. But the dream feels vivid and real. You may even be able to control how the action unfolds, as if you're directing a movie in your sleep.
Although some theorists have suggested that pain sensations cannot be part of the dreaming world, research has shown that pain sensations occur in about 1% of the dreams in healthy persons and in about 30% of patients with acute, severe pain.
Nightmares are vividly realistic, disturbing dreams that rattle you awake from a deep sleep. They often set your heart pounding from fear. Nightmares tend to occur most often during rapid eye movement (REM) sleep, when most dreaming takes place.
Lucid Dreams
These are the rarest type of dreams where the person is aware that they're dreaming, while dreaming. Not just that, people actually feel like they're in complete control of their dream.
REM sleep is revealed by continuous movements of the eyes during sleep. At times, dreams may occur during other stages of sleep. However, these dreams tend to be much less vivid or memorable. The length of a dream can vary; they may last for a few seconds, or approximately 20–30 minutes.
Berger (1963) found between 40% and 71% of dreams to contain color; Padgham (1975) found about 50%. Snyder (1970) even suggests that all dreams may contain color.
Hypnic jerks are natural, and they don't pose any health risks. Treating hypnic jerks isn't necessary, but if you're feeling anxious about hypnic jerks, or they're making it harder for you to fall asleep, there are a few things you can do to reduce hypnic jerks.