In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Couples' personalities converge over time to make partners more and more similar.
235
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
A man's beard grows fastest when he anticipates sex.
239
Wearing red increases attraction.
30