When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
You burn 26 calories in a one minute kiss.
605
Couples' personalities converge over time to make partners more and more similar.
235
Men fall in love faster than women do.
32
Speed dating was invented by a Rabbi in 1999.
45