Why Your Body Jerks in Sleep: Unraveling the Mystery of Hypnic Jerks

• Hypnic Jerk is a sudden involuntary muscle twitch or whole-body jerk experienced during the transition to sleep.
• It occurs due to a miscommunication between the brain and muscles as the body relaxes, with the brain sending a 'jolt' to prevent a perceived fall.
• Common causes include excessive fatigue, stress, caffeine consumption, irregular sleep schedules, and nutrient deficiencies like magnesium or iron.
• An evolutionary theory suggests it's a survival instinct from ancestors who slept in trees, preventing falls.
• To reduce occurrences, avoid caffeine before bed, maintain a regular sleep schedule, practice relaxation, and limit screen time.