A man's beard grows fastest when he anticipates sex.
239
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
40% of people who are rejected in romantic love slip into clinical depression.
72
Men who kiss their wives in the morning live five years longer than those who don't.
1k
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When dragonflies mate, their tails form a love heart.
22