Nutrition basics
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COVID-19 vs. flu: Similarities and differences
Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.
COVID-19, cold, allergies and the flu: What are the differences?
Knowing if you have COVID-19, a cold, the flu or seasonal allergies isn't easy. Find out about the differences between these illnesses.
COVID-19: Who's at higher risk of serious symptoms?
Advanced age and some health conditions can raise the risk of serious COVID-19 (coronavirus disease 2019) illness.
CPAP machines: Tips for avoiding 10 common problems
Making small adjustments to your CPAP machine can help you use it more comfortably.
Caffeine: How much is too much?
Is your caffeine habit causing problems? Find out how much is too much and if you need to curb your consumption.
Calcium channel blockers
Learn how these blood pressure medicines open the arteries, help relieve chest pain and treat an irregular heartbeat.
Cancer fatigue: Why it occurs and how to cope
Cancer fatigue that occurs during cancer treatment is common. You can take steps to lessen your cancer fatigue.
Cancer pain: Relief is possible
Learn what causes cancer pain and how you can work with your doctor to ensure your cancer pain is controlled.
Cancer surgery: Physically removing cancer
Surgery is a common treatment for many types of cancers. Learn how health care providers use surgery to prevent, diagnose and treat cancer.
Cancer treatment myths: Any truth to these common beliefs?
Can a positive attitude cure cancer? Find out the truth behind this and other common cancer treatment myths.
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