A man's beard grows fastest when he anticipates sex.
239
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Speed dating was invented by a Rabbi in 1999.
45
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
Parents receive 1 out of every 5 Valentines.
20
When dragonflies mate, their tails form a love heart.
22