the.com/adrenal

two tiny hats your kidneys wear, secretly running every panic you've ever had

means Relating to the small glands perched atop each kidney that pump out hormones like adrenaline to drive your stress and fight-or-flight responses.

from From Latin 'ad-' meaning 'toward' or 'beside' plus 'renes' meaning 'kidneys' — literally 'next to the kidneys,' which is exactly where these little glands sit. The same 'renes' gives us 'renal,' and the gland's most famous product, adrenaline, was named for the same neighborly arrangement in the early 20th century.

size
each weighs about as much as a grape
adrenaline rush
floods your blood in under a second
two layers
cortex and medulla, totally different jobs
stress factory
makes cortisol, the hormone that won't let you sleep
survival kit
remove both and life needs daily pills
for instance

pheochromocytoma — adrenal tumor in ~0.1-0.6% of hypertensive patients that releases excess catecholamines

addison's disease — autoimmune destruction of adrenal cortex affecting ~40-60 people per million, causes jfk's symptoms

cushing's syndrome — excess cortisol from adrenal adenoma or acth-secreting pituitary, ~10-15 cases per million annually

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