the.com/spicy

a chemical trick that fools your tongue into screaming fire where none exists

means Describing food that produces a hot, pungent, burning sensation in the mouth, or by extension anything risqué, exciting, or provocative.

from From "spice" plus the adjective ending "-y." "Spice" came into English from Old French "espice," which traces back to Latin "species" — meaning a "kind" or "sort," the same root behind biological "species." In late Latin and medieval commerce, "species" drifted to mean "goods" and especially the precious aromatic wares — pepper, cinnamon, cloves — that merchants prized. So "spicy" carries a quiet irony: a word for "type" became the word for the rarest, most fiery types of all. The slang sense of "racy" or "scandalous" is a much later flavoring of the same heat.

not a taste
Capsaicin triggers heat receptors, not taste buds
plant defense
Peppers evolved spice to repel hungry mammals
birds immune
Birds feel zero burn, spreading pepper seeds freely
milk fix
Casein in milk dissolves capsaicin, water doesn't
masochist high
The pain releases endorphins, hooking chili lovers
for instance

scoville heat units — carolina reaper pepper measures 2.2 million shu, hottest in the world

bhut jolokia — ghost pepper from assam, india, held world record at 1.04 million shu until 2011

da lat pepper — vietnamese chili variety from central highlands, prized for intense pungency in southeast asian cuisine

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