Nutrition basics
Learning Center
Nervous stomach: Is there such a thing?
Nervous stomach is a vague term that doesn't indicate a specific diagnosis.
Ocular rosacea
Learn about symptoms, causes and treatments of ocular rosacea — an eye condition that often affects people who have skin rosacea.
Pain and depression: Is there a link?
Depression can cause unexplained physical symptoms, such as headaches. Chronic pain can cause problems that lead to depression, such as poor sleep.
Painful urination (dysuria)
Learn about possible causes for pain, burning or other trouble while peeing and when to get medical help.
Peripheral neuropathy
Learn what may cause the prickling, tingling or numb sensations of nerve damage and how to prevent and treat this painful disorder.
Phenylalanine in diet soda: Is it harmful?
You may be worried about phenylalanine because of a warning on diet soda. Find out why the warning is there.
Pulse pressure: An indicator of heart health?
Pulse pressure may be a strong predictor of heart problems, especially for older adults.
Rectal bleeding
Blood in your stool, on the toilet paper or in the toilet bowl can have various causes. See your doctor if it lasts more than a day or two.
Rheumatoid arthritis: Does pregnancy affect symptoms?
Learn how pregnancy can affect rheumatoid arthritis symptoms.
Salt craving: A symptom of Addison's disease?
Constantly craving salt could signal a medical condition, such as Addison's disease.
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