There are several types of anxiety disorders including panic disorder, social anxiety disorder, specific phobias, and generalized anxiety disorder.
Anxiety
is a normal human emotion that everyone experiences at times. Many
people feel anxious, or nervous, when faced with a problem at work,
before taking a test, or making an important decision. Anxiety
disorders, however, are different. They can cause such distress that it
interferes with a person's ability to lead a normal life.
An anxiety disorder is a serious mental illness. For people with anxiety disorders, worry and fear are constant and overwhelming, and can be crippling.
-Panic disorder:
People with this condition have feelings of terror that strike suddenly and repeatedly with no warning. Other symptoms of a panic attack include sweating, chest pain, palpitations (unusually strong or irregular heartbeats), and a feeling of choking, which may make the person feel like he or she is having a heart attack or "going crazy."
- gereralized anxiety disorder
This disorder involves excessive, unrealistic worry and tension, even if there is little or nothing to provoke the anxiety.
Symptoms vary depending on the type of anxiety disorder, but general symptoms include:
- Feelings of panic, fear, and uneasiness
- Problems sleeping
- Cold or sweaty hands and/or feet
- Shortness of breath
- Heart palpitations
- An inability to be still and calm
- Dry mouth
- Numbness or tingling in the hands or feet
- Nausea
- Muscle tension
- Dizziness
What Causes Anxiety Disorders ?
The exact cause of anxiety disorders is unknown; but
anxiety disorders -- like other forms of mental illness -- are not the
result of personal weakness, a character flaw, or poor upbringing. As
scientists continue their research on mental illness, it is becoming
clear that many of these disorders are caused by a combination of
factors, including changes in the brain and environmental stress.
Like
other brain illnesses, anxiety disorders may be caused by problems in
the functioning of brain circuits that regulate fear and other emotions.
Studies have shown that severe or long-lasting stress can change the
way nerve cells within these circuits transmit information from one
region of the brain to another. Other studies have shown that people
with certain anxiety disorders have changes in certain brain structures
that control memories linked with strong emotions. In addition, studies
have shown that anxiety disorders run in families, which means that they
can at least partly be inherited from one or both parents, like the
risk for heart disease or cancer. Moreover, certain environmental
factors -- such as a trauma or significant event -- may trigger an
anxiety disorder in people who have an inherited susceptibility to
developing the disorder.
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