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Tests & Procedures

Antiphospholipid syndrome

Learn about causes and treatment of this blood condition that mainly affects women and may…

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Antisocial personality disorder

This includes ignoring right and wrong, lying, treating others harshly, and not caring about hurting…

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Anxiety: A cause of high blood pressure?

Anxiety can cause dramatic, temporary increases in blood pressure.

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Anxiety disorders

Learn the symptoms of this mental health condition, and ways to manage worry and fear…

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Aortic calcification: An early sign of heart valve problems?

This condition once was thought to be harmless, but it may be a symptom of…

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Aortic dissection

This life-threatening condition happens when blood leaks through a tear in the body's main artery,…

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Aortic root surgery

Learn more about this complex heart surgery done where the body's main artery, known as…

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Aortic valve disease

Learn more about diseases that affect the valve between the heart's main pumping chamber and…

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Aortic valve regurgitation

Learn more about the symptoms and treatment of this condition in which the heart's aortic…

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Aortic valve repair and aortic valve replacement

These types of heart valve surgeries are done to treat aortic valve disease, including aortic…

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Aortic valve stenosis

This type of heart valve disease reduces or blocks blood flow from the heart to…

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Aphasia

Some conditions, including stroke or head injury, can seriously affect a person's ability to communicate….

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Aplastic anemia

Your body stops producing enough new blood cells in this rare and serious condition, possibly…

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Appendicitis

Is it just a bellyache or something more serious? Find out about the symptoms and…

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Appendix cancer

Learn about this rare cancer that affects the appendix, which is a small pouch attached…

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Apple cider vinegar for weight loss

Some people claim this fermented drink can help you slim down. Find out what the…

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Aquatic exercises

Thinking about signing up for an aquatic exercise class? Or trying water exercises on your…

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Arcus senilis: A sign of high cholesterol?

With this condition, older adults develop a gray arc around the cornea of the eyes.

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ARDS

With this condition, which can occur after a major illness or injury, fluid builds up…

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Are you thinking about suicide? How to stay safe and find treatment

If you have suicidal thoughts, contact a suicide hotline or a mental health professional. Get…

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Arm pain

Arm pain: Symptom — Overview covers definition, possible causes of this symptom.

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Arteriosclerosis / atherosclerosis

Learn about the symptoms, causes and treatments for hardening of the arteries.

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Arteriovenous fistula

Irregular connections between arteries and veins may cause certain complications. Learn more about the causes…

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Arteriovenous malformation

In this condition, a tangle of blood vessels affects the flow of blood and oxygen….

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Arthritis

Learn about how different types of arthritis affect joints in different ways, along with how…

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Arthritis pain: Do's and don'ts

To cope with arthritis pain, strike a balance between activity and rest.

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Arthritis pain: Treatments absorbed through your skin

Arthritis pain relief options include creams and gels to rub on painful joints.

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Arthroscopy

Learn more about this procedure that uses a slim fiber-optic camera to diagnose and treat…

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Artificial sweeteners and other sugar substitutes

Get the facts on products that make food and drinks sweeter.

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Artificial sweeteners: Any effect on blood sugar?

Artificial sweeteners, also called sugar substitutes, offer the sweetness of sugar without the calories.

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