Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Parents receive 1 out of every 5 Valentines.
20
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
Couples' personalities converge over time to make partners more and more similar.
235
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Two in five people in the world marry their first love.
270
Men fall in love faster than women do.
32