People who sing with others tend to feel better emotionally than those who sing alone, which might mean that singing with friends or a group makes you happier.

When people sing in a choir for 20 minutes, they tend to feel happier and less excited than when they sing alone—so singing with others might make you feel better emotionally than singing by yourself.

Whether you sing alone or with others, singing might help lower your stress hormones — so it’s the singing itself, not who you’re with, that could be calming your body.

When people sing in a choir, they tend to feel happier and their body’s defenses get stronger, but if they just listen to choir music without singing, they might feel less stressed but also feel worse emotionally—so actually singing might be special for your mood and health.

When people sing together in a group, their bodies might release more of a feel-good chemical called oxytocin—but when they sing alone, this doesn’t happen. That suggests it’s the social part of singing together that boosts the chemical.