Understanding Anxiety

By Dr. Brian McDonough, Medical Editor

PHILADELPHIA (CBS) - Most of us think of anxiety as a bad thing, but this is not always the case.

A little bit of anxiety is a good thing. It can inspire you to prepare thoroughly for a trip or practice a speech a few extra times. But there is a difference in the case of severe anxiety where feelings can interfere with your work, relationships or well-being.

Anxiety disorders are treatable. However, many people never seek treatment. They may not realize the severity of their symptoms. Everyone worries, but severe anxiety occurs when you worry more than a situation warrants.

Many people with anxiety disorders realize they are worrying more than they should, but they cannot shake their anxiety.

Overly anxious thoughts may make you feel irritable or tired, have a hard time relaxing, sleep poorly or have trouble falling asleep.