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Anxiety Disorders

Definition
Alternative Names
Considerations
Common Causes
Different Kinds of Anxiety Disorders?
Treatments for Anxiety Disorders?

Definition:

Anxiety is a feeling of apprehension or fear. The source of this uneasiness is not always known or recognized, which can add to the distress it can cause.

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Alternative Names:

Feeling uptight; Stress; Tension; Jitters; Apprehension

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Considerations:

Stress is a normal part of life. In small quantities, stress is good -- it motivates people and can help them be more productive. However, too much stress can actually harm the brain and body. Persistent and unrelenting stress often leads to anxiety.

Anxiety is an emotion often accompanied by various physical symptoms, including the following:

Twitching or trembling
Muscle tension
Headaches
Sweating
Dry mouth
Difficulty swallowing

Sometimes other symptoms may also accompany anxiety:

Dizziness
Rapid or irregular heart rate
Rapid breathing
Diarrhea or frequent need to urinate
Fatigue
Irritability
Sleeping difficulties
Decreased concentration
Sexual problems
Nightmares

Anxiety disorders are a group of psychiatric conditions that involve excessive anxiety. They include specific phobias, obsessive-compulsive disorder, and social phobia.

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Common Causes:

  • Actual danger (where stress is an appropriate reaction)
  • Emotional stress
    • Grief
    • Depression
  • Physical stress such as a medical illness
  • Medication
    • Caffeine
    • Cold remedies
    • Sympathomimetics
    • Decongestants
    • Bronchodilators
    • Tricyclic antidepressants
    • Cocaine
    • Amphetamines
    • Other stimulants such as Ritalin and thyroid supplements
  • Medication side effects
  • Withdrawal from drugs (including caffeine and nicotine)
  • Substance dependence (including alcohol)
  • Poor diet (deficiency of vitamin B12)
  • Hyperventilation syndrome
  • Thyroid problems (particularly hyperthyroidism)
  • Low blood sugar
  • Cardiac problems

In extremely rare cases, a tumor of the adrenal gland (pheochromocytoma) may be the source of anxiety.

Most people experience feelings of anxiety before an important event such as a big exam, business presentation or first date. Anxiety disorders, however, are illnesses that cause people to feel frightened, distressed and uneasy for no apparent reason. Left untreated, these disorders can dramatically reduce productivity and significantly diminish an individual's quality of life.

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What Are the Different Kinds of Anxiety Disorders?

Panic Disorder-Characterized by panic attacks, sudden feelings of terror that strike repeatedly and without warning. Physical symptoms include chest pain, heart palpitations, shortness of breath, dizziness, abdominal discomfort, feelings of unreality, and fear of dying.

Obsessive-Compulsive Disorder-Repeated, intrusive and unwanted thoughts or rituals that seem impossible to control.

Post-Traumatic Stress Disorder-Persistent symptoms that occur after experiencing a traumatic event such as war, rape, child abuse, natural disasters, or being taken hostage. Nightmares, flashbacks, numbing of emotions, depression, and feeling angry, irritable, distracted and being easily startled are common.

Social Phobia-Extreme, disabling and irrational fear of something that really poses little or no actual danger; the fear leads to avoidance of objects or situations and can cause people to limit their lives.

Generalized Anxiety Disorder-Chronic, exaggerated worry about everyday routine life events and activities, lasting at least six months; almost always anticipating the worst even though there is little reason to expect it. Accompanied by physical symptoms, such as fatigue, trembling, muscle tension, headache, or nausea.

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What Are the Treatments for Anxiety Disorders?

More medications are available than ever before to effectively treat anxiety disorders. These include antidepressants or benzodiazepines. If one medication is not effective, others can be tried. New medications are currently under development to treat anxiety symptoms.

The two most effective forms of psychotherapy used to treat anxiety disorders are behavioral therapy and cognitive-behavioral therapy. Behavioral therapy tries to change actions through techniques such as diaphragmatic breathing or through gradual exposure to what is frightening. In addition to these techniques, cognitive-behavioral therapy teaches patients to understand their thinking patterns so they can react differently to the situations that cause them anxiety.

Is it Possible for Anxiety Disorders to Coexist with Other Physical or Mental Disorders?

It is common for an anxiety disorder to accompany another anxiety disorder, or in some cases depression, eating disorders or substance abuse. Anxiety disorders can also coexist with physical disorders. In such instances, these disorders will also need to be treated. Before undergoing any treatment, it is important to have a thorough medical exam to rule out other possible causes.

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