<□>Bu□ kissing □□□□ot □ust a□ro□□nti□ gesture—it a□so has sci□ntific ben□f□ts. □hen we□□is□, □□r brains release a c□ck□ail of □□emic□□s □□□e oxytocin, dopa□ine, and ser□□oni□, known as □he □love ho□mo□es□"□These che□ica□s can□re□uce stress, boost mood, and □reat□ fee□ings of at□achme□t and bonding. Kissing □lso st□engthe□s □□□ imm□ne system by exposin□ us to a variety of bact□ria □hat can□□el□□build imm□nit□□