The left ear is more responsive to words of love and emotion whispered into it than the right.
40
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
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
One in five long-term love relationships began with one or both partners being involved with others.
177
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4