When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
Wearing red increases attraction.
30
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Speed dating was invented by a Rabbi in 1999.
45
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26