Episode Details

Ever wake up mid-sleep with a sudden jolt like you’re falling? That’s a hypnic jerk — a harmless, common sleep twitch your brain mistakes for danger. Scientists think it’s an ancient survival reflex, maybe helping our tree-dwelling ancestors avoid falling. It spikes with stress, caffeine, or exhaustion, affecting 70% of people. Often felt as a muscle spasm or falling sensation, sometimes with a startled dream. While the exact cause is still a mystery, it’s just your brain being a little quirky. Reduce them with better sleep, less stress, and less caffeine.

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