When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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Historically, sweat has been an active ingredient in perfume and love potions.
309
Two in five people in the world marry their first love.
270
Men fall in love faster than women do.
32
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
464
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Men who kiss their wives in the morning live five years longer than those who don't.
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