Have you ever experienced that strange sensation of falling just as you’re about to fall asleep, only to be jolted awake? If so, you’re not alone.
Up to 70% of people have encountered this phenomenon, known as hypnic jerks or sleep starts. While the exact cause remains unclear, there are a few theories that offer some insight.
Hypnic jerks occur when your body involuntarily twitches just as you’re drifting into sleep. The sudden movement can be startling and often leaves you wondering what caused it.
One theory suggests that as your nervous system relaxes into sleep, it sends conflicting signals, resulting in muscle twitches.
Another theory proposes that these jerks are a leftover survival mechanism from our ancestors, who may have needed sudden muscle contractions to prevent falling while sleeping in trees.
Although there is no way to fully prevent hypnic jerks, some strategies can help reduce their frequency.
Developing a calming bedtime routine, avoiding stimulants like caffeine in the evening, and sticking to a consistent sleep schedule are all helpful. Creating a sleep-friendly environment also promotes better rest.
While hypnic jerks can be unsettling, they pose no real health risks. Understanding that they are a common, natural occurrence may ease any anxiety surrounding them.
