The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Historically, sweat has been an active ingredient in perfume and love potions.
309
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4