In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
28
The average person will go on a date at least 100 times before they finally marry.
33
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
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
40% of people who are rejected in romantic love slip into clinical depression.
72
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Wearing red increases attraction.
30