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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Only humans shed emotional tears.
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People who laugh more are better able to tolerate pain - both physical and emotional.
36
There are more than 10 million bricks in the Empire State Building!
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Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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It takes the same amount of time to age a cigar as wine.
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No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
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