Question

why do we breathe faster when we run or do physical exercises I want this answer in short answertu pagal hai tumhara koi Kam Nahin Hai what does this mean ​

Answer 1

Answer:

When you are exercising, your muscles need extra oxygen—some three times as much as resting muscles. This need means that your heart starts pumping faster, which makes for a quicker pulse. Meanwhile, your lungs are also taking in more air, hence the harder breathing

Answer 2

Answer:

When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute when you are resting, up to about 40–60 times a minute  during exercise.