When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
You burn 26 calories in a one minute kiss.
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One in five long-term love relationships began with one or both partners being involved with others.
177
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
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
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10