Question
Why do athletes breathe heavily after a race?

Answer

Athletes breathe heavily after a race to replenish the oxygen debt incurred during intense physical activity. During the race, their muscles require more energy than the body can supply through normal oxygen intake, leading to anaerobic respiration and the build-up of lactic acid. The heavy breathing helps to clear the excess carbon dioxide, convert lactic acid back into glucose, and restore the body's oxygen levels to normal.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free