Dec 12, 2025 · You know what M.D. means, but what does D.O. mean? What's different and what's alike between these two kinds of health care providers?

Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.

Jan 18, 2024 · Medicine you can get without a prescription may give some relief from acute sinusitis symptoms.

Dec 11, 2024 · Hand-washing: Do's and don'ts Hand-washing is an easy way to prevent infection. Know when and how to wash your hands, and how to get children into the hand-washing habit.

Jul 26, 2023 · You can do strength training by using weight machines or weights, your own body weight, heavy bags or resistance bands. You also can use resistance paddles in the water or do activities …

Apr 4, 2025 · Arthritis is a leading cause of pain and limited mobility worldwide. There’s plenty of advice on managing arthritis and similar conditions with exercise, medicines and stress management. But …

Apr 24, 2024 · An automated external defibrillator (AED) is a portable device that can be used to treat a person whose heart has suddenly stopped working. This condition is called sudden cardiac arrest. …

Jan 20, 2026 · Get answers about where stem cells come from, why they're important for understanding and treating disease, and how they are used.

Jan 21, 2026 · Why do high triglycerides matter? High triglycerides may contribute to hardening of the arteries or thickening of the artery walls, called arteriosclerosis. This condition increases the risk of …

Jun 13, 2020 · Pneumonia is an infection that inflames the air sacs in one or both lungs. The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and …