But□kissing i□ not just a r□□an□ic gesture—it □ls□ has sci□□□□fic bene□it□. W□e□ we□ki□s,□our brains release a cock□ail of □hemicals□like oxyto□i□, dopamin□, a□d serotoni□□ known as th□ "□ov□ horm□nes." T□ese c□em□cals can re□u□e s□res□, bo□st □ood□ a□d cre□te □eelings of□attachme□t an□□□o□d□ng□ □issing □lso strengthens our imm□ne system by □xpo□□ng us□to a variety of bacteria □h□t can□□e□p buil□ immunity.□>