How much do you know about phobias?

It is likely that you, or someone you know, have an irrational fear of something. While many claim to have a phobia about a particular situation or object, only about 5 percent of the American population has a clinically significant phobia. But because many people with phobias simply change their lifestyle to avoid the feared situation, rather than seek help, it's likely that the numbers are higher. This quiz will test your knowledge of different types of phobias and some of the consequences of and treatments for them....