How might hyperventilation prior to a breath hold dive allow the diver to extend the duration of the dive?

Question

Quizplus · Accepted Answer

Hyperventilation prior to a breath hold dive reduces the amount of carbon dioxide in the body, which lowers the urge to breathe and extends the time before the diver reaches their breaking point. This technique does not affect the oxygen stores in the body, but simply delays the point where the body's need for oxygen becomes overwhelming. However, it is important to note that hyperventilation can be dangerous and should only be done under the supervision of a trained professional.

How Might Hyperventilation Prior to a Breath Hold Dive Allow