Skin

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Your skin is the largest organ on your body, made up of several different components, including water, protein, lipids, and different minerals and chemicals. If you're average, your skin weighs about six pounds. It's job is crucial: to protect you from infections and germs. Throughout your life, your skin will change constantly, for better or worse.

In fact, your skin will regenerate itself approximately every 27 days.

Proper skin care is essential to maintaining the health and vitality of this protective organ.

Just looking at someone's skin can already tell you a lot – for instance, about their age and health. Changes in skin color or structure can be a sign of a medical condition. For example, people with too few red blood cells in their blood may look pale, and people who have hepatitis have yellowish skin.

Skin also plays an important role in regulating your body temperature. It helps prevent dehydration and protects you from the negative effects of too much heat or cold. And it allows your body to feel sensations such as warmth, cold, pressure, itching and pain. Some of these sensations trigger a reflex, like automatically pulling your hand back if you accidentally touch a hot stove.

skin consists of three different layers: the outer layer (epidermis), the middle layer (dermis) and the deepest layer (subcutis). Depending on where it is on your body and the demands made on it, your skin varies in thickness. The thickness of your skin depends on your age and sex too: Older people generally have thinner skin than younger people do, and men generally have thicker skin than women do.

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