Speed dating was invented by a Rabbi in 1999.
45
A man's beard grows fastest when he anticipates sex.
239
The single biggest predictor of love is proximity.
30
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.
72
Couples' personalities converge over time to make partners more and more similar.
235
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39