Healthy diets
Learning Center
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.
Caffeine and menopause symptoms: Is there a link?
Coffee, tea and other caffeinated drinks may worsen menopausal hot flashes and other vasomotor symptoms.
Caffeine content for coffee, tea, soda and more
Find out just how much caffeine is in coffee, tea, soda and energy drinks. You may be surprised at how much caffeine you're consuming.
Canola oil: Does it contain toxins?
Health concerns about canola oil abound on the internet but are unfounded.
Carbohydrate-loading diet
Read about the potential benefits of eating extra carbohydrates before endurance exercise. Diet details and a sample meal plan are included.
Cardiac asthma: What causes it?
Wheezing isn't always due to true asthma. Sometimes it's a sign of heart failure. Know the difference.
Childhood apraxia of speech
This speech disorder is caused by a problem with communication between the brain and the muscles used for speech. Speech therapy can help.
Chronic cough
A cough that lasts for weeks could be caused by smoking, postnasal drip, asthma, acid reflux, respiratory infections, COPD or another underlying problem.
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Clear liquid diet
Need to be on a clear liquid diet? Learn which foods to eat and which foods to avoid.
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