Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
The left ear is more responsive to words of love and emotion whispered into it than the right.
44
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
One in five long-term love relationships began with one or both partners being involved with others.
177
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Men who kiss their wives in the morning live five years longer than those who don't.
1k