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
Men fall in love faster than women do.
32
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39