You burn 26 calories in a one minute kiss.
605
The single biggest predictor of love is proximity.
30
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
A man's beard grows fastest when he anticipates sex.
239
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Men who kiss their wives in the morning live five years longer than those who don't.
1k
Historically, sweat has been an active ingredient in perfume and love potions.
309