Like knowing the human body


- Red blood cells flow through the whole body again in 30 seconds.

- The human brain is the most energy consuming organ of the body.

- The small intestine of a man is 3 feet long.

- The brain has a separate mechanism for managing the thumbs of our hands.

- The human heart produces enough pressure to throw blood 30 feet away.

- The weight of all the bones of the human body is 12% of the total weight.

- 18% of human body weight is covered by skin.

- The lining of the human stomach becomes new every 15 days.

- Man uses about 4 muscles to speak.

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