A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Two in five people in the world marry their first love.
270
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
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Historically, sweat has been an active ingredient in perfume and love potions.
309