Wearing red increases attraction.
30
One in five long-term love relationships began with one or both partners being involved with others.
177
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
When dragonflies mate, their tails form a love heart.
22