There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Historically, sweat has been an active ingredient in perfume and love potions.
309
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Men who kiss their wives in the morning live five years longer than those who don't.
1k
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
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
Couples' personalities converge over time to make partners more and more similar.
235