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.
Can Pollen Allergies Make You Tired?
The Science Behind the Pollen Count
Why There Is So Much Confusion About Who Has Food Allergies
Are there stretches you can do for osteoarthritis of the hip?
How do you cope with multi-level degenerative osteoarthritis?
Do You Need to Have a Positive Attitude to Beat Cancer?
8 Thoughtful Ways to Help a Loved One Going Through Chemo
Why Is Pancreatic Cancer So Deadly?
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
The 1918 Spanish Flu Killed Millions — and Experts Fear It Could Happen Again
Can the Change in Temperature Really Make You Sick?
Quiz: What's the difference between flu and a cold?
10 Tips for How to Relieve Sinus Pressure
4 Occupations Prone to Sinus Trouble
Understanding Sinus Congestion
How does your body know when to secrete insulin?
How to Cure A UTI Naturally
Urinary Tract Infection Lifestyle Tips
Urinary Tract Infection Prevention
The Curse of Brewing Beer in Your Own Belly
Is the BRAT Diet Still Beneficial?
Crazy Common Things People Swallow (That They Shouldn’t)
Why Your Baby Could Be Giving You Mommy Thumb
How Whole-Body Cryotherapy Works
How to Relieve Sciatic Nerve Pain
Is Polio Back? Here's What You Need to Know
Can Viruses Make You Smell More Attractive to Mosquitoes?
1 in 3 Who Had COVID-19 Have Long COVID Symptoms, Says Oxford Study
No Joke: Dead Butt Syndrome Is a Real Pain
What the Heck is Tech Neck? How Millennials Could Be the Wrinkliest Generation
Can you really get a bone infection?
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
Monkeypox Confirmed in the U.S. and Europe. What You Need to Know
How to Clean and Store Your Cloth Face Mask
How Anosmia, or 'Smell Blindness,' Can Help Pinpoint COVID-19
Do People Really Die of Old Age?
The Sarco Suicide Pod: Controversial or Compassionate?
Telling Doctors Not to Resuscitate, by Tattoo
We often use the terms heart attack and cardiac arrest interchangeably. But these are two different conditions. How can you tell one from the other?
Continuous monitoring of blood pressure instead of the static, one-time reading provided by a cuff is a medical holy grail and scientists have, for the first time, come up with a graphene tattoo that will provide it.
The director-general of the World Health Organization declared monkeypox a public health emergency of international concern July 23, 2022. So, what exactly does that mean?
Viruses can alter a person's body odor to make it more attractive to mosquitoes, leading to more bites, which, in turn, allow a virus to spread.
By Penghua Wang
Friends often tell cancer patients to "stay positive" in order to beat the disease. But is there any scientific proof that positivity helps with cancer survival? And can positivity have a dark side?
By Alia Hoyt
If a friend or relative is undergoing chemotherapy, you want to help them but may not be sure of the best way to do so. Here are eight great ideas that almost any patient will appreciate.
By Alia Hoyt
Who gets long COVID and why still remains a mystery, but several new studies are showing it's much more widespread than we initially thought. So what is long COVID and how can it be treated?
What in the world is monkeypox, and should Americans be worried about another contagious virus spreading across the U.S. and Europe?
The wildly contagious delta coronavirus variant now accounts for more than 80 percent of cases in the United States. Does it pose a threat to eliminating COVID-19 across the globe?
It's been a year since the World Health Organization officially declared the novel coronavirus a global pandemic. The last 12 months have been truly historic and life-changing in ways that we may not even yet recognize.
By John Donovan
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.
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.
You've probably heard the word "quarantine" a lot in relation to the coronavirus. But how is it different from patient isolation?