What are anxiety disorders?
An anxiety disorder is a condition which causes you to feel
nervous, worried, or jittery almost daily or many times
during a week. All of us have times when we worry or feel
nervous and upset about things. This is normal.
An anxiety disorder is not just nervousness, fretting, or
"butterflies" in the stomach. Anxiety disorders usually
include outright fear, panic, and terror. The fright and
terror often keep you from doing daily activities.
Are there different kinds?
There are several kinds of anxiety disorders. Some people
have more than one kind at a time. The main kinds are:
- Anxiety Disorder Due to a General Medical Condition.
Troubles with anxiety and nervousness can be caused by
physical problems. Medical conditions such as
hormone imbalances, breathing problems, and heart
problems can cause anxiety.
- Generalized Anxiety Disorder (GAD). GAD is anxiety or
worry that causes you problems in many areas every day or
nearly every day for 6 months or more. Worries often
cause physical symptoms such as headaches, back pain, and
intestinal or stomach upset.
- Panic Disorder. When panic attacks occur without
warning, or you have repeated unexpected attacks, it is
called panic disorder. These attacks can happen many times
every day or every week. You might worry about having these
attacks throughout the day. It can interfere with your work
and personal life.
- Phobias. Having a phobia means that you feel dread or
panic when you face a certain activity, event, or object.
Some people fear dogs, heights, or snakes. People with
agoraphobia avoid going places or doing things because
they fear they will have no way to escape or will panic
and have no help. Social phobia is fear of events such
as parties, presentations, and meetings.
- Posttraumatic Stress Disorder (PTSD). PTSD begins after
you witness or are involved in a very stressful event.
The event usually involves the threat of severe injury or
death. PTSD is when symptoms continue for months or
years after the event is over.
- Substance-Induced Anxiety Disorder. Drugs such as
alcohol, cocaine, sedatives, and amphetamines can make
you feel nervous, worried, or jittery. Stopping drug use
for a few weeks usually reduces fears and worry.
How do they occur?
Many anxiety disorders begin in late childhood through the
young adult years. Anxiety disorders caused by medical or
substance abuse problems can start at any age. Some
problems come on slowly over weeks or months. Anxiety can
also begin suddenly. A stressful event can also create
anxiety.
The exact cause of anxiety is not known. The brain is made
up of billions of neurons (cells) that communicate with each
other. This affects other parts of the body.
Neurotransmitters are chemical substances in the brain. The
kinds and amounts of these substances control how neurons
communicate. Too much or too little of these
neurotransmitters may lead to anxiety.
Anxiety problems tend to run in families. Stressful life
events and situations also play a major part. Anxiety is
more common if you have few friends, family, and activities.
Poor diet and lack of daily exercise may also make anxiety
disorders more likely.
Many people have both anxiety and depression. You may need
treatment for both problems.
How are they diagnosed?
Your healthcare provider or a mental health therapist will
ask about your symptoms and any drug or alcohol use. You
have lab tests to rule out medical problems such as hormone
imbalances and heart problems.
How are they treated?
Anxiety may be treated with psychotherapy, medicine, or
both. The best treatment for you depends on which type of
anxiety disorder you have.
How long will the effects last?
Some anxiety disorders last for a short time. Others may
happen over and over throughout life.
When should I seek help?
Do not try to overcome anxiety all by yourself. Seek
professional help if you believe that you or a loved one
have the symptoms of an anxiety disorder.
For more information, see:
Panic Disorder
Generalized Anxiety Disorder
Social Phobia
Agoraphobia
Posttraumatic Stress Disorder (PTSD)
Anxiety Disorder Due to a General Medical Condition
Substance Induced Anxiety Disorder
Cognitive Therapy
Adjustment Disorder with Anxiety
Written by Gayle Zieman, PhD, and Naakesh A. Dewan, MD, for McKesson Corporation
This content is reviewed periodically and is subject to
change as new health information becomes available. The
information is intended to inform and educate and is not a
replacement for medical evaluation, advice, diagnosis or
treatment by a healthcare professional.
Copyright © 2007 McKesson Corporation and/or one of its subsidiaries. All Rights Reserved.