Find out what happens when marine mammals hold their breath.

Can we train ourselves to hold our breath for longer?

A journey through the lungs, the vital organs that allow you to breathe.

Discover the amazing inner workings of the lungs.

Is the terrible lung disease tuberculosis making a comeback?

Should tuberculosis patients be held in quarantine?

How oxygen is vital for life but corrodes the human body.

Witness the effects of smoking on the lungs.