B□t k□□sing is not just a romantic□gesture—it □□□o □a□ □cie□□if□c□benefi□s. When we □iss□ our brai□s rele□se a cock□ail of chem□□als l□ke□ox□t□ci□, dopa□□ne, and s□rotonin,□known as the "love h□r□one□." These chemicals can □□du□e stress□ boost mo□d□ an□□crea□e feel□ngs of □ttach□ent and□b□n□in□. Kissin□ a□so str□ngt□e□s □ur□immune syst□m□by exposing□us to a variety of bacteria □hat can help b□ild im□u□□ty.城市印记
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