Anxiety can range from mild to severe and extremely debilitating, and this emotion leads to poor decisions and even physical impairment in the worst cases. An attack of anxiety may be brought on by almost anything, and certain individuals tend to become anxious in specific situations. Public speaking is a common reason for anxiety in some form and many have difficulty with this task. Anxiety may become worse over time and cause the sufferer to completely avoid certain situations or environments in order to minimize the emotions that are experienced. Overcoming anxiety is possible when the right treatment methods are used and therapy is ongoing. Exposure can help lessen anxiety and is frequently used in severe cases when anxiety prevents the person from leaving home or undertaking routine tasks. Sometimes anxiety can be a positive factor because it may motivate the sufferer. This may be the case with certain creative individuals and talented artists.