release adrenaline and cortisol for a boost of life-saving strength and speed.This primordial brain function is responsible for the fight, flight, or freeze reaction.
When early humans perceived danger, they needed the strength to stand up and fight, run away, or stay in place to avoid being noticed.
The function served them well in a world full of blood-thirsty animals and other unknown hazards.Although the fight-flight-freeze response continues to keep us safe, it has a built-in drawback.
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