□的□钟永恒
□p>But□kissing □s n□t jus□ a romant□c□gestu□e—it □ls□ has scientific ben□fit□. When w□ kiss,□ou□ bra□ns rel□ase a co□ktail of c□□micals□li□e □xytocin□ d□pami□e, and serotonin, kn□wn as the "love □orm□nes□"□□□□se che□icals□can□reduce stre□s, □o□st□□ood,□□nd c□eate feelings of attac□me□□ and bonding. Kissin□ also strengthens□our imm□□□ system□by exposing us to a varie□y of bacte□ia □□at can h□lp □uild immunity□<□p>