Men who kiss their wives in the morning live five years longer than those who don't.
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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.
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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.
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One in five long-term love relationships began with one or both partners being involved with others.
177
Historically, sweat has been an active ingredient in perfume and love potions.
309
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Wearing red increases attraction.
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