In English
Doctors know that the body temperature is normally 98.4. If this goes up to 99 they say fever has set in due to some disorder in the body. We inhale and exhale at a normal rate. If there is a slight increase or decrease in the rate it indicates disorder in the body. Changes in the pulse rate or blood pressure also indicate disorder. So you find that if you cross the limits even to a little extent it is dangerous or harmful to the body. There is a limit for everything to function in a normal way. When your eyes happen to see a flash of lightning or a flash light while taking photographs, they automatically close because they can't withstand such high illumination. Ear drums also cannot tolerate hearing beyond a certain volume and we close our ears or keep cotton inside the ears. From these we see that our life is a limited company!