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Some of the interesting facts about the lungs are: Fact 1: The lungs are the largest internal body parts about the size of two footballs. The right lung is slightly larger than the left one. Fact 2: Human beings breathe about 22,000 times per day, breathing in 2100 to 2400 gallons of air each day.What is bad for the lungs?
Underground miners are at risk for everything from bronchitis to pneumoconiosis, or "black lung.". It's a chronic condition caused by inhaling coal dust that becomes embedded in the lungs, causing them to harden and make breathing very hard.