12 things you never knew about kissing but you really should.

2. Kissing Uses Serious Muscle Power

When you kiss someone you are actually using many muscles, 146 muscles to be exact. Those muscles include 34 facial muscles and 112 of your postural muscles. So kissing is good for your facial toning! So forget cosmetic surgery, instead tighten up your face by kissing.

How many muscles kissing uses was figured out by researchers in London. The British researchers studied kissing by placing a couple under an MRI scanner. The scanner helped them discover how many muscles were used while the couple smooched.