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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A large study from Taiwan showed that people who had asthma and/or hay fever had a higher risk of developing a mental illness than those who didn't.

By Alia Hoyt

For those on the list waiting for a kidney donation, it could be years before their name comes up. One doctor is hoping to shorten this wait by retransplanting already donated kidneys.

By Alia Hoyt

Many people with Type 1 diabetes are deliberately skipping or manipulating their insulin doses in order to lose weight. But this can have very serious consequences.

By Alia Hoyt

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With so many germs flying about this time of year it can be tricky to figure out what ails you. Take this quiz to test your cold versus flu IQ!

By Alia Hoyt

So far there have been no reports of people contracting zombie deer disease, but could it make the jump from animal to human?

By Laurie L. Dove

Good news, for a change: The cancer death rate in America has declined 26 percent since 1991. Here's why.

By Alia Hoyt

It's kind of like the suicide booth on 'Futurama,' and its inventor says the Sarco should be available in 2018.

By Robert Lamb

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Would you communicate your end-of-life wishes by tattoo? And would they be respected?

By Robert Lamb

The first drugs specifically targeted to prevent migraines could be available as soon as 2018.

By Alia Hoyt

A groundbreaking study upends conventional wisdom on heart stents for treating stable angina.

By Michelle Konstantinovsky

Nearly half of all U.S. adults who have food allergies developed at least one of them during adulthood.

By Jesslyn Shields

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Although we're told to start getting screened for colorectal cancer at 50, new research suggests we should start earlier.

By Jesslyn Shields

Skipping breakfast might seem innocuous, but a new study finds it associated with atherosclerosis and a wider waistline.

By Jesslyn Shields

And the good news is that researchers have identified the protein that may be causing the problem.

By Kate Kershner

A U.K. study that lasted years and involved thousands of people suggests a link between slow walking and cardiovascular mortality.

By Shelley Danzy

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British scientists call for more awareness that diabetes can go into remission through weight loss.

By Alia Hoyt

A new smartphone app may help detect pancreatic cancer and other diseases tied to jaundice.

By Sarah Gleim

A national survey finds that one-third of Americans used prescription opioid painkillers in 2015, and millions were taking them without prescriptions. What's the reason for this huge number?

By Jesslyn Shields

We often lack the resources to treat and educate everyone when combating disease. Moving the 'hubs' of a social network to the front of the line may be most effective.

By Jesslyn Shields

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And that unique ability may propel us closer to an HIV vaccine for humans.

By Kate Kershner

Mosquitoes spread deadly malaria, and trimming one specific shrub could make significant headway in battling the disease.

By Laurie L. Dove

A new study shows that by testing for multiple genetic factors, it's possible to identify those who have a higher-than-normal risk of developing testicular cancer, a disease that often strikes young men.

By Patrick J. Kiger

The CDC has an app to help you make wise food choices while traveling.

By Alia Hoyt

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It's called oral allergy syndrome, and it's caused when the immune system freaks out and overreacts to allergens.

By Shelley Danzy

We often feel unsure about what to say to a friend with a serious illness, so we fall back on clichés. Here are some better ways to help from people who've been through it.

By Alia Hoyt