When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Wearing red increases attraction.
30
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41