Diseases and Conditions

Know how to prevent, treat and control the symptoms of various diseases and medical conditions. We explain what's happening in your body when disease strikes, and what you can do to feel better faster.

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We've all heard of "good" and "bad" cholesterol, and you may even know which is LDL and which is HDL. It's important for doctors to know the levels of each. Find out how each type affects your heart and what the levels tell you.

By Neil Stone

The giddiness over studies showing that circumcision reduces a man's risk of contracting AIDS from an infected woman has died down a bit in the wake of subsequent research. It appears that a woman's risk of contracting AIDS from an infected man may be greater if he's circumcised.

By Julia Layton

Monitoring your blood sugar is a vital part of the diabetes management process, and frequent self-monitoring is the key to successful diabetes care. Learn more about blood sugar and diabetes.

By Dr. Allen Bennett King & Dr. Dana Armstrong

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Diabetes can wreak havoc with your feet -- causing many problems from minor aches and pains to the need for amputation. Use this article to learn how diabetes can affect your feet.

By Timothy Gower

A research group in Atlanta has developed an AIDS vaccine that shows 96 percent effectiveness in non-human, pre-clinical trials. It's already in Phase I human trials and could be on the market within four years.

By Julia Layton

The kidneys control water quality and levels in the body and release an array of hormones and enzymes. Find out why diabetic kidneys start to lose their ability to be effective water-treatment plants.

By Timothy Gower

Diabetes can lead to digestive problems. Elevated blood sugar can damage the nerves that help digest food. Discover how the digestive system works, and how diabetes can throw a wrench into this complex process.

By Timothy Gower

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Diabetics are more likely to have a heart attack -- and their heart attacks are more likely to be fatal. Learn how diabetes increases your chances of developing conditions like hypertension and heart failure.

By Timothy Gower

Texas just mandated Gardasil, the cervical cancer vaccine, for all girls entering sixth grade. But many people elsewhere are finding it difficult to get their daughters vaccinated.

By Julia Layton

Texas recently became the first state to require that school-age girls receive the new cervical cancer vaccine, Gardasil. The mandate has sparked heated protests -- but to understand the debate, you must understand the drug.

By Alex Nechas

Most of us think of water as the healthiest drink in the world. But in abnormal amounts, it can actually cause death. How can a liquid you need to stay alive end up killing you?

By Julia Layton

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Hanging, when carried out with modern techniques, can be one of the quickest and most painless ways to be executed. But not all hangings are designed that way.

By Julia Layton & Alia Hoyt

Many of us understand that we're most contagious before we start feeling sick. Find out when colds and the flu are most easily spread.

By Julia Layton

If you're a mother in tropical Africa, a biting mosquito is one of your worst fears, because it can transmit malaria. Learn about this serious, often fatal disease and find out why it's one of the world's most pressing public health concerns.

By Sherry Kahn

So who's at risk for breast cancer? And what does someone do once they receive their diagnosis? Here, we tackle these and other questions you'll want answered.

By Molly Edmonds

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Over time we may take for granted the freedom to walk up a flight of stairs. The biggest adjustment for the patient is usually this loss movement. Learn how to adjust to life with arthritis.

By Diana L. Anderson

The aches of arthritis can make simple tasks seem like an insurmountable burden. While there is no cure for arthritis, there are steps you can take to project your joints. Learn how to prevent arthritis pain.

By Diana L. Anderson

Diabetes impacts every aspect of life from food preparation to travel. It affects personal interactions and it can impact work situations. Fitting diabetes into a life full of other responsibilities requires compromise. Learn how to adjust to life with diabetes.

By Jean Betschart Roemer

Preventing back pain is much easier than treating it after an injury. Learn how to avoid the bad habits that can damage your back.

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Maybe you lifted something heavy or swung a golf club too enthusiastically. Whatever the reason, now your back is out and you're wishing for something to end the agony. Learn how to relieve back pain.

Pet allergies can have an impact on an entire family, even those who are nonallergic. So what do you do if you have a pet and the allergies start to flare up? The debate is a tough one.

By Linnea Lundgren & Jeff Wald

Every room in your house is a potential host for the sources of allergies -- pet hair, dust and mold. But keeping an allergen-free house is not an impossibility. Learn more about allergy-proofing your home.

By Linnea Lundgren & Jeff Wald

Allergies are so commonplace that we often do not stop to think of how they occur. Those watery eyes and runny noses happen because your body rejects otherwise harmless substances.

By Linnea Lundgren & Jeff Wald

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In order to maintain an allergen-free home, it is important to monitor your home climate systems. This means making sure your air conditioner, dehumidifier and heaters are not generating allergens.

By Linnea Lundgren

Why do some people suffer an allergic reaction to dog hair while others do not? The answer can be found in your genes. But there are other reasons why some people suffer allergic reactions.

By Linnea Lundgren