Featured Article: Sweating
Your sweat is 99 percent water and one percent fat and waste. It travels from sweat glands deep in the skin to the surface of the skin through ducts. Watch the animation to learn more about sweat. See more »
skin anatomy library
The Skin Anatomy section explains how your skin functions and how personal and environmental factors can affect it.
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Articles 1-20 of 23
Components of the Skin
The skin is the body's largest organ, made up of the epidermis, hypodermis and dermis, which each have specific jobs. Watch the animation to learn more.
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Fact or Fiction: Sweating
Sweating is yet another sometimes embarrassing -- but totally unavoidable -- fact of life. Find out how sweat is made and unusual facts about sweat with this quiz.
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How does pregnancy affect the skin?
Pregnancy is a time of joy for many mothers, but sometimes it's accompanied by various skin problems. Are they anything to worry about? And will they go away after the baby is born?
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How does skin produce vitamins?
Your skin can use all kinds of vitamins to stay healthy, but one -- vitamin D -- is so important that your skin actually produces it. If you aren’t getting enough vitamin D, though, it can lead to problems.
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How much skin do we have?
Your skin is your largest organ, and it's constantly shedding skin cells and replacing them -- but how much skin do you really have?
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How Sebum Works
If you have oily skin, that waxy substance that makes your face shine, triggers breakouts and causes your makeup to run is sebum. Everyone's skin produces sebum, but what exactly is it, and what does it do?
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How Skin Grafts Work
If skin grafts seem painful to you, that's because they are. Skin grafts are patches on skin that are attached or sewn to open wounds to help them heal. They may be excruciating, but they save lives.
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How Sweat Works
Sweat is your body's way of cooling itself. Learn about eccrine and aprocrine sweat glands, how the body makes sweat, why we sweat and what factors affect sweating.
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How the Subcutaneous Tissue Works
Your skin has three layers that each serves an important purpose. Though you cannot see it, the innermost layer is composed of subcutaneous tissue, an all-important insulator that regulates your body’s temperature and protects your insides.
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How to Spot a Cancerous Mole
It might look like a perfectly harmless little mole or freckle but it could be a ticking time bomb that will greatly affect your health. Melanoma accounts for approximately 5 percent of cancer cases. Do you know how to spot a cancerous mole?
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How Touching Works
Whether it's a warm handshake with a friend or a tentative test of a hot stove, the sense of helps us understand the world around us. How do our touch receptors relay information about temperature, pain and pressure to our brain?
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How Your Skin Age Works
No matter how old you are, deep wrinkles on your face may tell a different story. How do you determine your skin age, and what are some of the factors that contribute to fine lines and dryness?
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Sweating
Your sweat is 99 percent water and one percent fat and waste. It travels from sweat glands deep in the skin to the surface of the skin through ducts. Watch the animation to learn more about sweat.
See more »
The Ultimate Skin Quiz
The skin is the largest organ in the body, so there's obviously a lot to say about it. We could write 100 "Ultimate Skin" quizzes and still not scratch the surface, so consider this quiz just the tip of the iceberg.
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What is skin made of?
Your skin is one of the most important organs of your body, and it's also the largest. By acting as a barrier to the outside elements, it protects your internal organs from harm. But what is your skin actually made of?
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What is the function of skin?
Even though it's your body's largest organ, it's easy to take skin for granted. But it plays an important role as a protective barrier and temperature regulator. How does skin affect your overall health?
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What is your facial fingerprint?
When you take your facial fingerprint, you're collecting information on the aging process. What can a piece of transparent tape tell you about the condition of your skin?
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When you have an itch, what is happening under your skin?
What exactly is an itch? Find out what your nerves register as "itching" and why you need to scratch so badly.
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Why do feet stink?
Stinky feet can be an embarrassment. Find out what makes your feet stink and whether you can do anything about it.
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Why does fake gold turn your skin green?
You saved up money for a special ring for your lady friend, but the one you buy leaves a green stain on her finger. Why in the world did it do that?
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Articles 1-20 of 23
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