According to the National Institute of Mental Health, anxiety disorders aren't like the temporary stress some of us may feel before speaking in public or going on a first date. Anxiety disorders, including generalized anxiety disorder, panic disorder, obsessive-compulsive disorder and post-traumatic stress disorder, last at least six months, commonly appear along with other mental or physical illnesses, and can become worse if they're not treated.

Symptoms center around excessive, irrational fear of anything from social situations to germs to tall buildings or any number of other things or situations.

The good news is anxiety disorders can be treated effectively with psychotherapy, medication or a combination of both, although sufferers may have to try several treatments or combinations of treatments before they find what works for them.

Anyone who thinks they have an anxiety disorder should first see their family doctor, who can determine if their symptoms are caused by an anxiety disorder or some other problem, and whether further treatment by a psychiatrist is necessary.

For more information about anxiety disorders, click here.