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.


Sure, the carrier mosquitoes are in the U.S., and so is the disease. But other factors will stave off a widespread incident, experts say.

Zika virus acts weird for a mosquito-borne illness. The newest twist is that it can survive for a surprisingly long time on a hard, nonporous surface.

Sometimes the nose knows. What advances are being made in detecting diseases by scent?

Cat scratch fever’s having another day in the spotlight and this time it has nothing to do with rocker Ted Nugent. So, should you be scared of your kitty?

Contradicting earlier advice, the study found that introducing these foods earlier is better.

Is September too early and December too late? Or does the timing matter less than you might think for a flu shot?

Relieving sinus pressure isn't rocket science, but when your head's clogged up, it can feel just as important.

The FDA is recommending that all blood donations start being tested for Zika virus in the next 12 weeks. But what about the blood already on hand? What happens to that?

For most people, sinuses are only really a problem in the spring and fall, when allergies, colds and flu take over. But for an unlucky few, sinus pressure and pain come with the job.

Throw some germy surfaces into a mix of dry air and a pressurized cabin, and you have a recipe for sinus misery.

When your sinuses are clogged and you can't breathe, it might help to know how those cavities work. Over-the-counter decongestants help, too.

One in 12 U.S. adults has asthma, says the CDC. That's a lot of people who might be very interested in a new treatment for this serious health problem.

Naming a disease after a person makes it more memorable than giving it a bland technical moniker. It's also a good way to pay tribute to its discoverer. Who were the people that gave their names to Parkinson's, Alzheimer's and other diseases?

There may be more going on with your body than just itchy eyes and a runny nose when you're dealing with seasonal allergies, a small new study finds.

People with non-celiac wheat sensitivity have a weakened intestinal barrier, which leads to a systemic immune response and a non-gluten protein may be to blame.

We know that a sedentary lifestyle is not healthy. A new study finds specific pulmonary embolism risks in watching more than 2.5 hours of TV in a day.

You know you're going to bid this planet farewell at some point, but what ultimately will cause your death? We have a good guess.

Thanks to a portable driver, Stan Larkin was able to live with an artificial heart out in the real world for 555 days.

Modern cancer treatments can be almost as bad as the disease, but new immunotherapy research suggests we could optimize our own immune systems using donor T cells.

In countries where governments mandate vaccination against chickenpox, a new study finds, online searches for information about symptoms drop.

The Australian study reviewed data from more than 34,000 subjects and looked at phone usage from 1987-2012 and compared it to recorded brain cancer cases from 1982-2012.

New approach to treating allergies involves hiding allergen in friendly shell so immune system doesn't attack it.

A new study finds noisy touch-free dryers like the Dyson Airblade can fill an entire room with airborne viruses. But "can" and "actually do" are different things.

If you've never heard of abdominal migraines, you're not alone. But your kid might experience them and, eventually, migraine headaches as an adult.