Diet and exercise
Learning Center
Chelation therapy for heart disease: Does it work?
Learn more about this debated treatment for heart disease.
Blood sugar levels can fluctuate for many reasons
Unexplained changes in blood sugar levels can be the result of illness, injury, stress and hormone changes.
Frontal fibrosing alopecia
This type of receding hairline, which primarily affects older women, is treatable. The earlier you talk with your doctor about it, the better your chance of preventing permanent baldness.
Hypothyroidism: Should I take iodine supplements?
Although iodine deficiency can cause hypothyroidism, this deficiency is rare in the United States.
Calcium supplements: Do they interfere with blood pressure drugs?
In large amounts, these supplements may affect certain blood pressure medicines.
Heartburn medicines and B-12 deficiency
Acid-controlling medicines may do more than prevent heartburn. They also may keep vitamin B-12 from being absorbed.
Calcium supplements: A risk factor for heart attack?
Learn about the possible link between calcium supplements and heart attacks.
Bioidentical hormones: Are they safer?
There's no evidence that bioidentical hormones are safer than standard hormone therapy for menopause.
Unusual COVID-19 symptoms: What are they?
COVID-19 can cause a wide variety of symptoms, some more common than others. Learn about how COVID-19 can make you feel.
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about links between this key vitamin and the widespread viral infection.
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