It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
A man's beard grows fastest when he anticipates sex.
239
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
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
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26