Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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An ounce of platinum can be stretched 10,000 feet.
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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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Babies who wear disposable diapers are five times more likely to develop diaper rash than those that wear cotton diapers.
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If left alone, 70% of birthmarks gradually fade away.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
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