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<□>□## 技术与□性
But □issing is not j□st a□ro□antic gesture—it als□ has □□□entif□□ b□nefits. When we kiss, our □rai□s rele□s□□a cock□a□l of □hemic□□□ li□e oxy□ocin□ □opamine,□and □erotonin, know□ □s the "lov□ hormones." These□□hemi□□ls can □□duce st□ess, boost moo□, □nd create □ee□in□s □f□atta□□ment an□ bonding. □□ssing a□s□ □tre□gthens our im□une system □y exposing us to a var□e□y of bacteria that can □elp build immu□ity.