A signal is sent pulsing through your nervous system. Muscles move. Your mouth opens wide. Your Lungs Expand. Air is being sucked into them. Tiny molecules of oxygen inside this mixture of odd and even gasses are now in your lungs. The alveoli that line the inside of your lungs absorb the oxygen and give it to them blood cells. They tell the heart to lay down a beat. The heart complies. Blood is now rushing through your heart, into veins, then to your capillaries and back to your heart via the lungs through your arteries so that it may all repeat. Once again.
You just yawned in Math Class.
All your arguments are invalid.
The world is awesome.
Smile.
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