In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
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
Men fall in love faster than women do.
32
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
Men who kiss their wives in the morning live five years longer than those who don't.
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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
Wearing red increases attraction.
30
The average person will go on a date at least 100 times before they finally marry.
33