The Science Behind Sleep Jerks: A Doctor Explains Why It Happens

The Mystery of the Sleep Jerk: Why Does It Happen and Is It Harmful? Millions of people worldwide experience that sudden, involuntary jerk just as they're drifting off to sleep. This phenomenon, known as a hypnagogic jerk, has puzzled scientists and sleep experts for years. But now, thanks to Dr. Kunal Sood, a board-certified MD, we have a better understanding of this common occurrence. "It's an involuntary muscle twitch," explains Dr. Sood in a recent TikTok video, "and it's more likely to occur if you have anxiety, consume stimulants like caffeine or nicotine, or suffer from sleep deprivation." Dr. Sood's video, which has already garnered thousands of views, offers a simple yet compelling explanation for why hypnagogic jerks happen: our brains get confused when our muscles relax, mistaking the feeling for falling. The resulting involuntary jerk is the body's way of preventing a fall. While reassuring viewers that these jerks are usually harmless, Dr. Sood advises seeking medical attention if they persist. Dr. Sood's explanation provides a clear and concise answer to a question many people have, making his video a valuable resource for those seeking to understand this common sleep phenomenon. His expertise and clear communication style make his explanation both accessible and trustworthy.