Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
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The adult human brain weighs about 3 pounds (1,300-1,400 g).
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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The average person's skin weighs twice as much as their brain.
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Our Right Lungs takes more air than our left lung.
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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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