Men who kiss their wives in the morning live five years longer than those who don't.
1k
Historically, sweat has been an active ingredient in perfume and love potions.
309
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
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 someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Wearing red increases attraction.
30
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
Couples' personalities converge over time to make partners more and more similar.
235