Why do We Kiss? Science Says ...

Kissing. It’s something that we all like to do, and something that feels completely natural to experience and experiment with, but have you ever taken a second to think about why we actually do it? Even though it feels like the most natural thing in the world, there is obviously lots of scientific and evolutionary reasoning for us human beings wanting to do it so much! Let’s get to the bottom of this thing once and for all, shall we? Why do we kiss? This is what science has to say about it.

1. Rooted in Attachment

Kissing causes chemical reactions in the brain that release a boost of the feel-good hormone oxytocin, often referred to as the love hormone. How good you feel kissing someone is directly related to how attached you feel to them, so for example, kissing a long term partner or your own child will make you feel a lot better than kissing a stranger, because you have a deeper attachment and connection with them and therefore more oxytocin is released.