10 Kissing Facts (Some Might Make You Think Twice About Locking Lips Again)

Everyone likes a good snog. But it's safe to say most of us are more concerned with the emotions behind kissing than the science.

That's where we come in, with ten interesting facts about lip-locking.

According to the video, lips have 100 times the amount of nerve endings as fingers and a kiss exchanges between 10 million and one billion bacteria. Yuk.