There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Historically, sweat has been an active ingredient in perfume and love potions.
309
Wearing red increases attraction.
30
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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
A man's beard grows fastest when he anticipates sex.
239