One in five long-term love relationships began with one or both partners being involved with others.
177
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
Two in five people in the world marry their first love.
270
Couples' personalities converge over time to make partners more and more similar.
235
Men fall in love faster than women do.
32
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39