Read our lips: Kissing doesn’t just feel good, it plays a biological role as well. Studies show that kissing spikes dopamine and serotonin levels—two feel-great chemicals in your brain—and also heightens oxytocin to give you that “lovey dovey” feeling that bonds you to your partner. Since a good kiss has the ability to create such sky-high feelings, it’s no wonder a bad kiss is such a turnoff. We all just want that lovin’ feelin’, and a bad-kisser simply won’t do the trick.
MORE: Love is a Beauty Treatment
