There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
One in five long-term love relationships began with one or both partners being involved with others.
177
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
A man's beard grows fastest when he anticipates sex.
239
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