Historically, sweat has been an active ingredient in perfume and love potions.
309
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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.
40
One in five long-term love relationships began with one or both partners being involved with others.
177
When dragonflies mate, their tails form a love heart.
22
40% of people who are rejected in romantic love slip into clinical depression.
72