Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
40% of people who are rejected in romantic love slip into clinical depression.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
The single biggest predictor of love is proximity.
30
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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