Fun Facts About the Respiratory System Did you know
Fun Facts About the Respiratory System
Did you know...?
Breathing isn't as much about bringing oxygen in, but about pushing carbon dioxide out.
Only about 21% of room air is oxygen. We lose about 12 oz. of water daily through respiration. If both of our lungs and all the alveoli (the tiny sacs where air exchange
occurs) were flattened out, they would be about the size of a tennis court. The average person can only hold their breath for a maximum of 30-60
seconds. However, there are some people that can hold it for up to 20 minutes! (Do not attempt, it takes extensive training and could cause serious injury!) Adults breathe about 12-15 times per minute while newborns breathe about 30-60 times per minute. When our brain senses a shortage of oxygen, it triggers us to take a long deep breath...or to YAWN. You may notice that around sunset and sunrise, a shift will occur between which nostril you are breathing through. Mouth breathers tend to have more illnesses, sore throats and ear infections, this is thought to occur because the air is not filtered by the nose first. Your left lung is often smaller than the right to allow room for the heart.
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