Men who kiss their wives in the morning live five years longer than those who don't.
1k
'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
Couples' personalities converge over time to make partners more and more similar.
235
The left ear is more responsive to words of love and emotion whispered into it than the right.
44
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
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
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130