Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Kissing an infection-free partner is good for your teeth!
141
Couples' personalities converge over time to make partners more and more similar.
235
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Raj from the Big Bang Theory is married to Miss India.
11
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
The single biggest predictor of love is proximity.
30