40% of people who are rejected in romantic love slip into clinical depression.
72
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
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
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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