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Lung Facts

The left lung of a human is slightly smaller than the right lung. This provides some space for the heart.

The lung has the largest surface area of any organ. It is about half the size of a tennis court.

The lung capacity of a human is more than 5 liters of air.

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Children and women breathe at a faster rate than men.

The only organ in the human body that can float on water is the lung.


Lung capacity can be increased by doing exercise daily. Michael Phelps – The Olympic gold medalist – has a lung capacity, double the size of an ordinary person.

At rest, the average human takes up 20,000 breaths each day.

Every day, an average person breathes over 2,000 gallons of air.

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