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FACT: The majority of human bones have a dense, strong outer layer, followed by a spongy part full of air for lightness, while the middle contains a soft, flexible, tissue substance called bone marrow.

Human Body Systems Illustration Of The Human Body Systems Royalty Free

When you stand, blood moves to the decrease extremities. This can be partly due to the fact that blood passes to any muscles being functioned and partly due to the regarding gravity. Prone eliminates both these factors. If you find yourself standing up, the very center has to do the job harder, versus gravity, to have the blood piped through the physique and returning to the heart. The idea beats quicker to defeat the effects of gravitational pressure. Lying down destroys gravity, so that your heart noesn’t need to work seeing that hard any more. Your pulse slows down.

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