Factpack: Lungs

The video tutorial explains the human lung's volume and structure, comparing it to a football and detailing its 300 million air chambers. It highlights the lung's capacity to hold about 3 liters of air, contrasting it with a blue whale's lung, which can hold 2500 liters. The tutorial also covers the average human's breathing frequency of 25,000 times a day and the ability to hold breath for up to 60 seconds, with some trained individuals achieving over 20 minutes.

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