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.

For how long can the average human hold their breath?

What is the maximum time some trained individuals can hold their breath?