7.Kissing uses 146 muscles.

7.Kissing uses 146 muscles.

    

While your reaction to kissing feels like a natural response, for the most part, our kissing style can be traced back to when we were still in our momma’s stomach!

The majority of people will tilt their head to the right when they kiss.

This may seem like a socialized trait, but it actually goes back even further.

The theory goes, is that we lean to the right because when we were in the womb, we naturally tilted our heads to the right.

The next time you lean in for a smooch, keep in mind that two-thirds of people will lean to the right, although there may be the occasional left-tilter, so watch out for head bumps!

In total, one kiss uses 146 muscles working together. You may think the majority of those are in your face, but actually, 112 of those are postural muscles, and the remainder 34 is various facial muscles.

Even so, the muscle used the most in a kiss is the muscle around your mouth, of course, called the orbicularis oris.

How did researchers find out something like this? Well, they studied couples kissing underneath an MRI scanner. Imagine that experiment!