It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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40% of people who are rejected in romantic love slip into clinical depression.
72
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Couples' personalities converge over time to make partners more and more similar.
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One in five long-term love relationships began with one or both partners being involved with others.
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Historically, sweat has been an active ingredient in perfume and love potions.
309
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