The single biggest predictor of love is proximity.
30
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
40
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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.
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