Both fear and anxiety send signals through the body that prepare all systems for possible danger. Hormones, such as adrenaline and catecholamine, are released in what is known as the "fight or flight" response. The sudden increase in hormone levels speeds up the heart and increases the amount of blood being pumped. At the same time, the muscles tighten, increasing the individual's ability to fight or flee from danger. The intensity of these physiological responses varies according to the seriousness of the event or thought that sparked the emotion, the strength of the individual's fear or anxiety, and his or her previous experience and genetic makeup.

As long as there's a good reason for fear or anxiety, and it doesn't interfere with the ability to work, play, and socialize, it is not considered a problem. But when anxiety takes on a life of its own and begins to disrupt everyday activities, the situation is no longer normal. A genuine emotional disorder is now at work... and it's time to see a doctor.

Effective treatments for anxiety disorders are available, and research is yielding new, improved therapies that can help most people with anxiety disorders lead productive, fulfilling lives. If you think you have an anxiety disorder, you should seek information and treatment.

Unrestrained anxiety can lead to any of several emotional disorders, all characterized by an unpleasant and overwhelming mental tension with no apparent identifiable cause. While most people with anxiety disorders are completely aware that their thoughts and behavior are irrational and inappropriate, this insight gives them no help in controlling their symptoms.

Anxiety disorders are surprisingly frequent, and affect more Americans than does any other emotional disorder. They are more common than depression, manic depression, or abuse of alcohol and other substances. According to the American Psychiatric Association, while depressive disorders affect one person in 20, one in 12 suffers an anxiety disorder. Because consumers and doctors alike are less attuned to anxiety disorders than other emotional problems, these disorders often go unrecognized. This is unfortunate, because most cases of anxiety can be treated successfully. In fact, anxiety disorders are considered the most treatable of all emotional problems.

Prescription drugs and those purchased over the counter also can cause anxiety symptoms. Cold medicines, diet pills, antispasmodic medications, stimulants, digitalis, thyroid supplements, and, paradoxically, antidepressants given to reduce panic all may cause anxiety. Discontinuing a variety of drugs, including tranquilizers, sleeping pills, and certain blood-pressure medicines can lead to withdrawal symptoms that often include anxiety.

The anxiety associated with taking or discontinuing medications and other substances can usually be easily relieved once the cause is recognized. It's therefore essential to provide your doctor with a complete run-down of your medicines--including over-the-counter products and of your eating and drinking habits.

Many organizations today supports research into the causes, diagnosis, prevention, and treatment of anxiety disorders and other mental illnesses. Studies examine the genetic and environmental risks for major anxiety disorders, their course--both alone and when they occur along with other diseases such as depression--and their treatment. The ultimate goal is to be able to cure, and perhaps even to prevent, anxiety disorders.

Other research focuses on the hippocampus, another brain structure that is responsible for processing threatening or traumatic stimuli. The hippocampus plays a key role in the brain by helping to encode information into memories. Studies have shown that the hippocampus appears to be smaller in people who have undergone severe stress because of child abuse or military combat. This reduced size could help explain why individuals with PTSD have flashbacks, deficits in explicit memory, and fragmented memory for details of the traumatic event.

By learning more about brain circuitry involved in fear and anxiety, scientists may be able to devise new and more specific treatments for anxiety disorders. For example, it someday may be possible to increase the influence of the thinking parts of the brain on the amygdala, thus placing the fear and anxiety response under conscious control.

Psychiatrists or other physicians can prescribe medications for anxiety disorders. These doctors often work closely with psychologists, social workers, or counselors who provide psychotherapy. Although medications won't cure an anxiety disorder, they can keep the symptoms under control and enable you to lead a normal, fulfilling life.

Psychopharmacology, the treatment of psychiatric disorders and emotional distress with medication, has developed over the last fifty years, as our understanding of the workings of the brain has increased in sophistication. When medication is prescribed for mental and emotional illness, the most frequent goal is to restore the chemical balance within the brain, thereby restoring equilibrium to the entire system. Certain drugs function to address certain symptoms, such as when sedatives are prescribed for insomnia. Medications can work to slow disease processes, such as when anti-oxidants are used to treat Alzheimer's. Still other drugs control cravings and curb other problematic behaviors, such as taken to control alcoholism.

If you, or someone you know, has symptoms of anxiety, a visit to the family physician is usually the best place to start. A physician can help determine whether the symptoms are due to an anxiety disorder, some other medical condition, or both. Frequently, the next step in getting treatment for an anxiety disorder is referral to a mental health professional.

Among the professionals who can help are psychiatrists, psychologists, social workers, and counselors. However, it's best to look for a professional who has specialized training in cognitive-behavioral therapy and/or behavioral therapy, as appropriate, and who is open to the use of medications, should they be needed.

It's important that you feel comfortable with the therapy that the mental health professional suggests. If this is not the case, seek help elsewhere. However, if you've been taking medication, it's important not to discontinue it abruptly, as stated before. Certain drugs have to be tapered off under the supervision of your physician.

Definition interpretation

Anxiety

• A state of uneasiness and apprehension, as about future uncertainties.


• Worry or tension in response to real or imagined stress, danger, or dreaded situations. Physical reactions such as fast pulse, sweating, trembling, fatigue, and weakness may accompany anxiety.

Anxiety disorder

• A psychiatric disorder involving the presence of anxiety that is so intense or so frequently present that it causes difficulty or distress for the individual.

Anxiety disorders

• Any of various disorders in which anxiety is either the primary disturbance or is the result of confronting a feared situation or object; they include obsessive-compulsive disorder and posttraumatic stress disorder.

Fear

• Fear is an unpleasant feeling of perceived risk or danger, whether it be real or imagined.

Depression

• In psychiatry, a symptom of mood disorder characterized by intense feelings of loss, sadness, hopelessness, failure, and rejection.

Mental health

• A state of emotional and psychological well-being in which an individual is able to use his or her cognitive and emotional capabilities, function in society, and meet the ordinary demands of everyday life.


• The psychological state of someone who is functioning at a satisfactory level of emotional and behavioral adjustment.

Stress

• A state of extreme difficulty, pressure, or strain.


• A physical and psychological response that results from being exposed to a demand or pressure.

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