A man's beard grows fastest when he anticipates sex.
239
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
Couples' personalities converge over time to make partners more and more similar.
235
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
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The single biggest predictor of love is proximity.
30