Reviewed summary
Robert Sapolsky breaks down the biological chaos behind every human action, from split-second reactions to lifelong patterns. Why do kindness and cruelty both flow from the same tangled roots of brain, genes, and culture? This book doesn’t offer neat answers, but it reveals the messy biology that drives us all.
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Reviewed summary
Zebras sprint from lions and then relax—no ulcers, no lingering stress. Humans, on the other hand, stew over emails and deadlines, keeping their stress response switched on long after the threat is gone. Why does our biology trip over modern life’s endless low-level stress? Robert Sapolsky breaks down the science behind this mismatch and what it means for our health.
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Reviewed summary
Zebras sprint from lions and then relax, but humans stew over stress for months or years. This book unpacks why chronic stress—your body stuck in fight-or-flight mode—does real damage to your heart, gut, and brain. Why do we suffer what zebras don’t? Robert Sapolsky breaks down the biology and social traps behind it all.
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