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.

Topics to Explore

Learn More / Page 2

More Than a Third of U.S. Adults Take Prescription Opioids, Millions Misuse Them

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?

To Fight Disease, Should We Treat and Educate Popular People First?

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.

Cows Have HIV-fighting Power

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

How the Framingham Heart Study Works

Born in 1948, and still going strong, the Framingham Heart Study has told us just about everything we know about how people get heart disease and strokes. But not without some controversies along the way.

Removing This Invasive Shrub's Flowers Could Help Combat Malaria

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

Research Identifies New Genetic Clues for Testicular Cancer Risk

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.

'Can I Eat This?' App Saves You from Montezuma's Revenge

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

Your Hay Fever Could Make You Allergic to Some Fruits

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

'If You Need Anything, Let Me Know': What Not to Say to a Friend With Cancer

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 .

Will There Ever Be a More Comfortable Way to Get a Mammogram?

Many women dread the squishing of their chest during their annual checkup. Is there another way to get the same results in a more breast-friendly way?

Can You Be Allergic to Your City?

If you're moving from one city to another, pack some extra tissues because it's true: Seasonal allergies can flare up when you relocate and are exposed to new allergens.

Doctors Baffled by Rise in U.S. Teen Cancer Rate

Researchers and doctors know some cancers in teens have skyrocketed since 1975. They just don't know why.

Removing Brands From Cigarette Packs Encourages Smokers to Quit

The branding on cigarette boxes steers smokers who pick up the packs. But without it, smokers aren't as keen on taking a drag.

Being a Tattoo Artist Is a Pain in the Neck — Literally

A first-of-its-kind study looks at the physical stresses of being a tattoo artist.

New CDC Quarantine Rules Raise Civil Liberty Concerns

Updated quarantine regulations which would give federal health officials more leeway to detain sick people have some legal and civil rights experts concerned.

Free Knitted Knockers Are a Boon for Breast Cancer Survivors

This is what happens when fearless knitters take on breast cancer one stitch at a time.

Say It; Don't Spray It. Speaking Spreads the Flu, Too.

This flu season, beware of coughers, sneezers ... and loud talkers?

Why a Massive Zika Outbreak in the United States Is Unlikely

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.

New Study: Zika Can Survive for 8 Hours Outside a Host Body

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.

The Curious Ability to Detect Disease by Smell

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

Cat Scratch Fever’s Not Just an Infectious Song

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?

Giving Babies Eggs and Peanuts Can Lessen Allergy Risk, Study Finds

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

When's the Best Time for a Flu Shot?

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

10 Tips for How to Relieve Sinus Pressure

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


Recommended