Healthy diets
Learning Center
Ozone air purifiers: Can they improve asthma symptoms?
Ozone air purifiers don't reduce asthma symptoms. In fact, they can make asthma worse.
Polypill: Does it treat heart disease?
This combination pill contains small doses of several commonly prescribed heart disease medicines.
Prostate cancer metastasis: Where does prostate cancer spread?
Prostate cancer can spread (metastasize) just about anywhere in the body, but it's most likely to spread to the lymph nodes and bones.
Pulse pressure: An indicator of heart health?
Pulse pressure may be a strong predictor of heart problems, especially for older adults.
Reactive airway disease: Is it asthma?
Reactive airway disease is a general term that doesn't indicate a specific diagnosis.
Recurrent prostate infection: What are the treatment options?
These infections that keep coming back can be hard to treat. Here's what to know.
Secondary infertility: Why does it happen?
Second pregnancies don't always come easily. Learn about possible causes for secondary infertility and when to seek professional help.
Semen allergy: A cause of infertility?
Semen allergy, also called seminal plasma hypersensitivity, is a rare condition that can be easily misdiagnosed. Learn about symptoms and possible treatments.
Sex after years of abstinence: OK to resume?
With time and patience, you can resume sexual activity at any age.
Sinus infection and toothache: Any connection?
Sometimes the cause of a toothache isn't a tooth problem, but a sinus problem.
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