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□h2>珍□的□物和生物
□p>But kissing is not□jus□ □ r□mant□c□g□sture—it□□lso has scient□fic benef□ts□ When w□ kiss, o□r □rai□s re□ease a cocktail of c□□micals lik□□oxyto□in, d□□□m□ne, and se□otoni□, kno□n as the "□o□□ hor□ones." These che□icals can reduce s□res□□ boost mood, an□□cr□ate □eelings of a□tachment and □on□ing. □□s□□ng□also str□ngthens our immu□e syste□ by exposing us to a va□iety □f bacter□□ that ca□ help bui□d□i□munity.十三位女性形象各□特□
友情与爱□的变化<□h2>