Adrenaline is the body's survival hormone that triggers the fight-or-flight response, causing immediate physiological changes including increased heart rate, accelerated blood flow, dilated pupils, and enhanced strength to prepare the body for rapid action during fear or excitement.
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Your Body’s Superpower Adrenaline Explained CGIAdded:
Ever wondered what happens inside you during a sudden surge of fear or excitement?
It's adrenaline, your body's ultimate survival switch.
Instantly, your heart transforms into a high-performance engine.
Blood flow accelerates, pupils dilate, and your strength peaks. In seconds, you become superhuman. Subscribe to unlock more secrets of your body.
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