Historically, sweat has been an active ingredient in perfume and love potions.
309
Wearing red increases attraction.
30
In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
44
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
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
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
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34