A fetus develops fingerprints at eighteen weeks!
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Wearing headphones for an hour increases the bacteria in your ear 700 times.
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During a typical human life span, the human heart will beat approximately 2.5 billion times.
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Research indicates that babies who suck on pacifiers are more prone to ear aches.
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More people use blue toothbrushes, than red ones!
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Only 1% of bacteria cause disease.
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One quarter of the human brain is used to control the eyes.
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The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
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