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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Is the American wheat industry to blame for the gluten-free craze? Don't believe the hype, gluten might not be the problem you think it is.

By Bambi Turner

We're surrounded by WiFi these days. What types of radio waves are being emitted, and should we be concerned?

By Jennifer Sellers

Nobody likes to vomit. But it's one of the body's amazing functions that could prevent you from becoming even sicker.

By Jennifer Sellers

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An estimated 1.6 million people will be diagnosed with cancer in 2015 — just in the United States. How long until chemo isn't a fact of life for people we know?

By Kate Kershner

Throwing up bile is a less-than-pleasurable experience, to put it lightly. Sometimes it feels like it may never end. Find out why it happens, what your body is trying to tell you and when you should be concerned.

By Laurie L. Dove

Modern medicine may be here, but there are still plenty of infectious diseases to combat, and the CDC is really busy doing that. Get to know 10 of these public (health) enemies.

By Nicholas Gerbis

Leprosy was the AIDS of the first millennium – a disfiguring disease that struck terror since people thought it was easy to contract. Patients were banished to live in colonies. What was life like there?

By Patrick J. Kiger

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Some people in the anti-wheat movement say that the grain has compounds in it that make it addictive. But is this true?

By Alison Cooper

Pneumonia and diarrhea used to be bigger killers, but nowadays, developed countries can successfully treat them. Which other diseases are no longer death sentences?

By Alia Hoyt

No one thinks public toilets are altars of tidiness, but are they actually dangerous? The odds of catching something from a public bathroom are low -- but it's possible.

By Maria Trimarchi

You may think you know Ebola. You probably don't. The infectious disease has killed thousands in West Africa and has reappeared on the continent once again. What have scientists learned since the last outbreak?

By Patrick J. Kiger & Meisa Salaita

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Colorectal cancer, or colon cancer, is a common type of cancer found in both men and women. Find out what you need to know about this form cancer.

By Dr. Rob Danoff

C'mon. You know you've thought about this. We have, too. Want to see how your list compares with ours?

By Kate Kershner

Do you need to lower you cholesterol? Here is an eight step plan to lower your cholesterol.

By Discovery Fit and Health Writers

In 1998, a panel of doctors at the National Institutes of Health surmised that Joseph Merrick's affliction may have been caused by a condition known as Proteus syndrome. Find out what it is and what causes it.

By Elise Ritter

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Flu's symptoms, from body aches to cough and fever, are legendary. But what causes all that misery? Look below to find out why you feel so awful.

By Discovery Fit and Health Writers

Fallen stars are tragic, but what their toxicology reports say are shocking. Here are 10 fallen stars and their toxicology reports.

By Discovery Fit and Health Writers

We'll look at the top 10 rare diseases, some of which you may never have heard of -- and others which you hope you never will again.

By Discovery Fit and Health Writers

There are many diseases out there you've never heard of. We've put together the top 20 diseases you've probably never heard of that are rare and unusual.

By Discovery Fit and Health Writers

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Joseph Merrick, the "Elephant Man," was the most shockingly disfigured person in history. Parts of his body were grossly enlarged. Check out these images of the Elephant man.

By Discovery Fit and Health Writers

Parasites are common, and many are harmless. But we're willing to bet that you'd go to almost any length to avoid spending time with the five on this list.

By Maria Trimarchi

Your target heart rate depends on several individual factors. Learn more about what target heart rate is and what factors are used to determine it.

By Bobbie Hasselbring

Learn how to control your allergy symptoms while traveling. No more sneezing, watery eyes and runny nose on your trips!

By Dr. Rob Danoff

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There are innumerable freaky ways to meet your mortality, but what is the actual likelihood that you'll be struck by a meteorite or injured in an amusement park?

By Maria Trimarchi

What are the odds of being struck by lightning? How many people die in car accidents every year? Find out the odds of some common and some unusual death scenarios.

By Discovery Fit and Health Writers