It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The average person will go on a date at least 100 times before they finally marry.
33
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
When dragonflies mate, their tails form a love heart.
22
A man's beard grows fastest when he anticipates sex.
239
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26