Why do we get goosebumps, racing hearts, and shaky hands when we're scared? In this episode, we explore the fascinating biology behind fear — from the amygdala's alarm system to the "fight-or-flight" response that helped our ancestors survive. You'll discover how fear is stored in memory, why some people chase thrills, and how scientists are learning to rewire fear responses to help those with trauma. Whether it's facing a wild animal or stepping onto a rollercoaster, fear is both a lifesaving instinct and, surprisingly, a source of pleasure.

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