Blood plays an important role in our body.

Blood transports oxygen and nutrients to all areas of the body, allowing them to function properly. Carbon dioxide and other waste products are carried by blood to the lungs, liver, and digestive tract, where they are expelled from the body. Blood also helps the body combat diseases and transports hormones. 

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Blood is like an electric charges. The electric charge supplies the current for the machine to work but blood supplies the oxygen for our organs to work. 

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If you want a long life, appreciate your blood