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.
Alpha-gal Syndrome: The Meat Allergy Caused by a Tick
Get Ready for Longer, More Intense Pollen Seasons
Can Pollen Allergies Make You Tired?
People With Asthma, Hay Fever May Have Higher Risk of Psychiatric Disorders
First New Asthma Pill in 20 Years Could Replace Inhalers
Allergy-Asthma Connection
Can you get arthritis from cracking your knuckles?
Who can help treat my arthritis?
What does arthritis do to my joints?
Do You Need to Have a Positive Attitude to Beat Cancer?
8 Thoughtful Ways to Help a Loved One Going Through Chemo
What's the Difference Between a Neoplasm and a Tumor?
What's the Difference Between Cardiac Arrest and a Heart Attack?
How the Graphene Blood Pressure Tattoo Will Change Monitoring
Cyanosis: Why Your Fingers Turn Blue
How Can I Tell Whether I Have Flu or COVID-19?
The 1918 Spanish Flu Killed Millions — and Experts Fear It Could Happen Again
Can the Change in Temperature Really Make You Sick?
First Migraine-specific Drugs Show Promise in Studies
10 Tips for How to Relieve Sinus Pressure
4 Occupations Prone to Sinus Trouble
How Many People Could Use the Same Kidney?
Why Diabulimia Is So Dangerous
Turns Out Type 2 Diabetes Is Reversible, After All
New Study: Chronic Fatigue Syndrome Affects Teens More Than Thought
The Mauve Factor
Yeast Overgrowth
Osteoporosis Diagnosis and Risk Factors
Osteoporosis Questions and Answers
Osteoporosis Treatment
How to Cure A UTI Naturally
Bladder Infections
Interstitial Cystitis
What Is a Low FODMAP Diet and Who Should Try It?
The Curse of Brewing Beer in Your Own Belly
Is the BRAT Diet Still Beneficial?
Why Your Baby Could Be Giving You Mommy Thumb
More Than a Third of U.S. Adults Take Prescription Opioids, Millions Misuse Them
How Whole-Body Cryotherapy Works
Is Polio Back? Here's What You Need to Know
Can Viruses Make You Smell More Attractive to Mosquitoes?
6 Questions Answered About COVID-19 'Stealth' Variant BA.2
No Joke: Dead Butt Syndrome Is a Real Pain
Being a Tattoo Artist Is a Pain in the Neck — Literally
Daily Coffee May Lower Risk of Both Liver Disease and Multiple Sclerosis
Monkeypox Is a Global Health Emergency, But Don't Panic Yet
Nematodes: Do We Still Need to Worry About Roundworms and Bare Feet?
Scurvy: The Scourge of the High Seas Remains at Large Today
T-cells Are Superheroes in the Battle Against Omicron
20 Years Later, 9/11 Survivors Are Still Experiencing Fallout from Toxic Dust
Masks Are Back and 'War on COVID-19 Has Changed,' CDC Says
Do People Really Die of Old Age?
The Sarco Suicide Pod: Controversial or Compassionate?
Telling Doctors Not to Resuscitate, by Tattoo
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The low FODMAP diet was created by a team of researchers in Australia to help those with digestive issues like IBS. This is one diet that's not about losing weight.
The symptoms for both are similar though there are a few differences. Treatment is also similar for mild cases of either. But severe cases of COVID are much more deadly, so how do you know what you have?
By Alia Hoyt
New parents — especially new moms — are prone to an ailment known as mommy thumb. It's painful and real, but what is it and how is your baby causing it?
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Sometimes you just can't avoid using a public bathroom. Is it safe with coronavirus raging? How can you be sure?
Many health experts are gravely concerned about how the massive protest crowds, chanting and especially use of tear gas could accelerate the spread of coronavirus.
Learn the steps of contact tracing, one critical way that public health officials stop viruses like COVID-19 from spreading, in this HowStuffWorks video.
Wearing some sort of face mask is more important than ever now to protect you and others from coronavirus. But how do clean and safely store it?
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Despite strict closing and mask orders, San Francisco was hit hard by the 1918-1919 influenza pandemic. But some residents balked at the rules and that meant more people died.
By John Donovan
As COVID-19 rages around the world, distilleries quickly ramp up the switch from booze to hand sanitizer in an all-out effort to curb the spread.
By Jeremy Glass
When you were a kid, your mom probably told you not to go around barefoot because you could get worms. But are nematodes still a problem today?
By Alia Hoyt
Anosmia, or the loss of the ability to detect one or more smells, is a common symptom of upper respiratory viral infections. It might also be a way to tell if you have novel coronavirus.
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The World Health Organization just declared the coronavirus a full-blown pandemic. What does that even mean, and how is that different from an epidemic?
By Sarah Gleim
You've probably heard the word "quarantine" a lot in relation to the coronavirus. But how is it different from patient isolation?
More than a year has passed since a new strain — SARS-CoV-2 — emerged in China and rapidly spread across the globe, infecting more than 90 million and killing more than 2 million. What has — and hasn't — changed since then?
By Sarah Gleim
A study from the National Institutes of Health found women who regularly use permanent hair dye and chemical hair straighteners are at a higher risk of breast cancer. The risk increases significantly — more than six times — for black women.
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It's called auto-brewery syndrome and, for some folks, it's a fact of life.
A bland diet consisting of bananas, rice, applesauce and toast was a standard remedy for children with diarrhea and other stomach issues. But not any more. What happened to the BRAT diet?
By Alia Hoyt
Just 10 percent of Americans with pancreatic cancer survive for at least five years. Why is the outlook so grim and what can be done about it?
By Alia Hoyt
Although it's far more common in women, men get breast cancer too. And they have a much higher fatality rate. Why is this and what can be done?
By Alia Hoyt
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We know science rarely says anything good about sitting all day. But did you know that if spend too much time on your bum, you could end up killing it?
Although the disease is associated with sailors of yore, it can affect anyone lacking vitamin C. And it still impacts some people today.
By Mark Mancini
The EPA deemed ethylene oxide a carcinogen in 2016, yet there are many cities across the country being polluted with the invisible gas.
If you have a gut feeling something is off in your physical or mental well-being, a parasite could be the culprit.
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There's been a steady uptick in Lyme disease across the United States since 1997, but the news isn't all bad.
By John Donovan
Spring is here, your pollen allergies have kicked in and you feel tired and sleepy. Could pollen have something to do with it? Or is it just the meds?