Historically, sweat has been an active ingredient in perfume and love potions.
309
The average person will go on a date at least 100 times before they finally marry.
33
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
The left ear is more responsive to words of love and emotion whispered into it than the right.
44
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25