Healthy diets
Learning Center
Diarrhea
Learn more about what causes this common digestive condition, and how you can treat and prevent it.
Different types of COVID-19 vaccines: How they work
Find out how different COVID-19 vaccines cause your body to create antibodies that will fight the COVID-19 virus.
Diverticulitis diet
A diverticulitis diet may be part of a treatment plan for acute diverticulitis.
Diverticulitis: Can certain foods trigger an attack?
Contrary to popular belief, no specific foods are known to trigger bouts of this condition.
Dry orgasm
It's possible for men to reach sexual climax without ejaculating. Learn about the possible causes.
Dysarthria
This condition affects muscles used for speaking. Speech therapy and treating the underlying cause may improve speech.
Early HIV symptoms: What are they?
Early signs of the disease can include fever, fatigue and swollen lymph glands. Learn more.
Easy bruising: Why does it happen?
Get the facts about easy bruising. Learn about causes and find out when it's a sign of a problem.
Flu symptoms: Should I see my doctor?
See a healthcare professional if you are at high risk for complications from flu.
Food allergy vs. food intolerance: What's the difference?
Might you have to swear off milkshakes for good? Follow the symptom clues to find out whether you possibly have a food allergy or a food intolerance.
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