the.com/shaking

Your body misfiring on purpose to burn off the fear it can't outrun.

means The act of trembling or moving back and forth in quick, involuntary motions — from cold, fear, illness, or emotion.

from From Old English 'sceacan,' meaning to move quickly to and fro, to brandish or flee. It has Germanic cousins (Old Norse 'skaka') and once meant 'to depart in haste' as much as 'to tremble' — which is why we still 'shake a leg' to hurry and 'shake off' what chases us. The fear and the fleeing were tangled in the word from the start.

shivering math
Muscle shivers generate up to five times resting heat
animal reset
Wild prey literally shake off trauma after escaping predators
caffeine jitters
Coffee tremors come from overexcited motor neurons firing early
essential tremor
More common than Parkinson's, often runs in families
cold trick
Newborns can't shiver, so they burn special brown fat
for instance

san francisco earthquake 1906 — magnitude 7.9 quake that destroyed most of san francisco on april 18, 1906

parkinsons disease tremor — neurological condition causing involuntary shaking, affecting over 10 million people worldwide

nepal earthquake 2015 — magnitude 7.8 quake on april 25, 2015 that killed nearly 9,000 people

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