Anxiety is a feeling of apprehension and fear characterized by physical symptoms such as
Anxiety disorders are serious medical illnesses that affect approximately 19 million American adults. In fact, anxiety disorders as a group are the most common mental illness in America. Anxiety disorders can affect adults, children, and adolescents.
These disorders fill people's lives with overwhelming anxiety and fear. Unlike the relatively mild, brief anxiety caused by a stressful event such as a business presentation or a first date, anxiety disorders are chronic, relentless, and can grow progressively worse if not treated. People who suffer from anxiety disorders typically struggle with difficult symptoms such as agitation, feeling "uptight," worry, and apprehension on a daily basis. These disturbing symptoms can become so severe that they interfere with normal daily activities. Sometimes anxiety disorders lead to restlessness, poor sleep and insomnia, trouble concentrating, feeling tense, a sense of dread, chest pain, lightheadedness, trouble breathing, hyperventilation, and even overwhelming panic with a feeling of losing control.
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
Pictures, Images, Illustrations & Quizzes
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Causes of Anxiety
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Antisocial Personality Disorder
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Autism Spectrum Disorder (In Children and Adults)
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Body Dysmorphic Disorder (BDD)
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Borderline Personality Disorder (BPD)
Borderline personality disorder is a serious mental illness characterized by pervasive instability in moods, interpersonal...
Bullying is repeated physical or verbal aggression that involves an imbalance of power. Types of bullying include physical,...
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Chronic Fatigue Syndrome (CFS or SEID)
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Depression is an illness that involves the body, mood, and thoughts and affects the way a person eats and sleeps, the way one...
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Head and Neck Cancer
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Holiday Depression, Anxiety, and Stress
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Jet lag (desynchonosis) is a temporary disorder that results from travel across time zones. Symptoms include anxiety,...
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Mental health is an optimal way of thinking, relating to others, and feeling. All of the diagnosable mental disorders fall under...
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Obsessive Compulsive Disorder (OCD)
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Panic attacks are sudden feelings of terror that strike without warning. These episodes can occur at any time, even during sleep....
Phobias are unrelenting fears of activities (social phobias), situations (agoraphobia), and specific items (arachnophobia). There...
Postpartum depression is a form of depression that occurs within a year after delivery. It is thought that rapid hormone changes...
Posttraumatic Stress Disorder
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Schizotypal Personality Disorder
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Other Causes of Anxiety
- Medications (Both Prescription and Nonprescription)
Examples of Medications for Anxiety
- alprazolam (Xanax, Xanax XR, Niravam) Anti-Anxiety Drug
- Ativan (lorazepam)
- Ativan vs. Xanax
- clomipramine (Anafranil)
- clonazepam (Klonopin)
- diazepam (Valium, Diastat, Acudial, Diastat Pediatric, Diazepam Intensol)
- Lexapro (escitalopram)
- St. John's Wort (Hypericum perforatum)
- venlafaxine, Effexor XR (Effexor has been discontinued in the US)
- Zoloft (sertraline)
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