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Tuesday, 1 April 2014

Cells, bones, muscles, and organs

We all know very well that without drinking enough fluids, the blood cannot supply adequate oxygen to the body cells. This supply of oxygen is sometimes even more important than eating. Excessive weight also causes problems. The bones need to support more weight and the muscles must work more. Although the sun is very important for our health, athletes spending a lot of time  in the sun must protect their skin from sunlight.

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