EVERYDAY SCIENCE

Detailed explanation-1: -Breathing is something that we all do without usually realizing it. We breathe in and out about 22, 000 times a day. We are powered by breathing. Our lungs fuel us with oxygen, our body’s life-sustaining gas.

Detailed explanation-2: -The average person breathes in the equivalent of 13 pints of air every minute and takes 17, 000 breaths per day. “Breathing Air” is actually not a good description of what happens when we breathe. Air is made up of almost 79% nitrogen, 21% oxygen, and small amounts of elements like helium, carbon dioxide, and hydrogen.

Detailed explanation-3: -When we are at rest this is how normal breathing, usually appears: Breathing in (inhalation) for 1 to 1.5 seconds. Breathing out (exhalation) for 1.5 to 2 seconds. An automatic pause of almost no breathing for 1 to 2 seconds.

Detailed explanation-4: -The normal range of breathing rate per minute in an average adult, for a person at rest, is 12 – 20 breaths per minute. Any person having a breathing rate under 12 or over 25 is considered to be breathing abnormally.