Couples' personalities converge over time to make partners more and more similar.
235
One in five long-term love relationships began with one or both partners being involved with others.
177
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255