A man's beard grows fastest when he anticipates sex.
239
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Wearing red increases attraction.
30
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
One in five long-term love relationships began with one or both partners being involved with others.
177
Speed dating was invented by a Rabbi in 1999.
45
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
40% of people who are rejected in romantic love slip into clinical depression.
72