When you hold your breath for more than a minute, more oxygen diffuses into the blood from the alveoli.

Question

Quizplus · Accepted Answer

Holding your breath does not increase the diffusion of oxygen into the blood from the alveoli; it primarily leads to a buildup of carbon dioxide in the blood. Oxygen diffusion is driven by the concentration gradient between the alveoli and the blood, which does not significantly change by merely holding your breath.

When You Hold Your Breath for More Than a Minute