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Learning Center
Ejection fraction: What does it measure?
This measurement, commonly taken during an echocardiogram, shows how well the heart is pumping. Know what results mean.
Dry skin
Learn more about the causes of and self-care tips for a common flaky skin condition that tends to be temporary or seasonal but may become a lifelong problem.
Dry orgasm
It's possible for men to reach sexual climax without ejaculating. Learn about the possible causes.
Double-outlet right ventricle
In this heart condition present at birth, two major blood vessels aren't attached to the heart in the usual positions. Learn how it's treated.
Doppler ultrasound: What is it used for?
A Doppler ultrasound measures blood flow and pressure in blood vessels.
Domestic violence against men: Recognize patterns, seek help
Domestic violence against men is real. Find out how to break the cycle.
Dietary supplements for erectile dysfunction: A natural treatment for ED?
Some dietary supplements for erectile dysfunction might work and some might be dangerous. Get the facts.
Diagnosing Alzheimer's: How Alzheimer's is diagnosed
Even though there isn't a cure, early diagnosis of Alzheimer's dementia is important.
Dense breast tissue: What it means to have dense breasts
Find out what it means if your mammogram report says you have dense breast tissue. Learn about additional breast cancer screening tests to consider.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
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