□h2>背景□绍Bu□ kis□ing □□ not just a romant□c gesture—it □lso has scientif□□□bene□i□s□ □hen we kiss,□our b□ains release □ coc□□ail of □h□m□□als like □x□tocin, dopamine, and serotonin, kn□wn as□the "love□ho□□ones." These chemical□ can re□uce □tre□s, □□ost mood, and cr□ate feelings of □□t□□hment□and □onding. □issi□g□a□so □treng□hen□ our i□mu□e system □□ exp□s□□□ us to□a variety of ba□ter□a that can h□lp build immun□□y.