the.com/joy
the only riot that leaves the streets cleaner than it found them
means a feeling of great happiness or delight, often bright and welling up from within
from From Old French 'joie,' descending from Latin 'gaudium' meaning gladness, rooted in the verb 'gaudere,' to rejoice. The same Latin spring feeds 'rejoice,' 'gaudy,' and 'enjoy' — a whole family of brightness flowing from one old word for delight.
brain chemistryDopamine spikes more from anticipation than the reward itself
contagiousSmiling is detectable in voices over the phone
body costGenuine laughter burns real calories and lowers blood pressure
originWord comes from Latin gaudia, meaning delights
durabilityStudied as separate from happiness, surviving even grief