12 Fascinating Facts About Your Lips

Lips are, of course, essential for eating and speaking. And whistling. And kissing. And we’d look pretty silly without them.

But if you think that’s all there is to say–and know–about human lips, you’re in for a big surprise. Just take a look at our list of 12 fascinating facts about lips:

1. Your lips are unique.

Many animal species have lips, of course. But only human lips have such a distinct border between the pinkish, reddish parts and the surrounding skin, according to LiveScience. Scientists call this the “vermilion border.”

2. Your lips can help you choose a mate.

It’s hard to kiss without lips, and some scientists believe that kissing plays a key role in mate selection. It seems that locking lips brings potential mates close enough that they exchange biological information–via sniffing another’s pheromones. Women are believed to prefer the scent of men whose immune systems differ from their own–and pheromones may be a key to this determination.

3. That fleshy bump in the middle of your upper lip has a name.

In fact, that fleshy bump has a few names, including procheilion, labial tubercle, or tuberculum labii superioris.

4. Your lips can say something about your sexuality.
Hard to believe, but recent research links the shape of a woman’s lips with her ability to achieve orgasm. Specifically, a Scottish psychologist named Stuart Brody found that women with a prominent tubercle of the upper lip are better able to achieve vaginal orgasm. Who knew?

5. Bigger is generally better.

When it comes to attracting the opposite sex, big —> Read More