Parents receive 1 out of every 5 Valentines.
20
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
Raj from the Big Bang Theory is married to Miss India.
11