Wearing red increases attraction.
30
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Sea otters hold hands while sleeping so they don’t drift away from each other.
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