course 1 : the skin

The Skin, Living Tissue

The Skin, Living Tissue

The skin is living tissue. It is constantly being renewed so as to keep the surface - the protective barrier - in good repair. This protective layer is very thin (one hundredth of a millimeter) and is completely renewed every three to four weeks. Keeping our skin in good shape is essential to carry out every day tasks, including those related to work.

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