□□t kiss□ng□□s n□t j□s□ □ romanti□ gesture—it □lso has□scientific benefits□ When we kis□,□o□r□□rains□release a □ocktail of che□□cals□like oxy□□cin, dop□min□, an□ serotonin, k□□wn as the□"love hormo□□s." T□ese □hemicals□can reduce □t□ess, bo□st mood, a□d c□eate feelings of attachment and bon□in□□ Kissing □lso streng□h□ns □ur □m□une system by exposin□ us□to a □ariet□ of□bacte□ia □hat can help build□i□munity.□恨情仇,□泪密布
传说与真相□□□
成长□烦恼与困□