When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
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
One in five long-term love relationships began with one or both partners being involved with others.
177
40% of people who are rejected in romantic love slip into clinical depression.
72
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104