- Adult lungs have a surface area of around 70 square metres.
2.Human lungs contain almost 1,500 miles of airways and over 300 million alveoli.
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An average person breathes in around 11,000 litres of air every day.
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Your nose and ears continue growing throughout your entire life.
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If you smoothed out all of the wrinkles in your brain, it would lay flat the size of a pillowcase.
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