Humanity’s primitive ancestors evolved the stress response in an environment far more dangerous than today’s civilized workplaces. Humans’ evolutionary responses no longer match their daily reality.
The ancient fight-or-flight response – wherein stress provokes an accelerated heartbeat, tightened muscles and the release of adrenaline – impelled early humans to either flee a predator or charge into battle. The mismatch theory recognizes only this kind of stress response, but evolution has not stood still.
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According to conventional wisdom, stress is a killer – a Pandora’s box of threats to the mind and body. Stanford University psychologist Kelly McGonigal offers a rare contrarian look at stress based on new research that changed her mind about its impact.
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