Kissing an infection-free partner is good for your teeth!
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
One in five long-term love relationships began with one or both partners being involved with others.
177
Parents receive 1 out of every 5 Valentines.
20
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165