A phobia is an unreasonable worry that is unlikely to cause harm. The word itself comes from the Greek word phobos, which means fear or terror.

According to the National Institute of Mental Health, phobias affect about 10% of American adults each year. These phobias usually appear in childhood or adolescence and continue into adulthood. Their impact on women is also twice that of men.

Phobias are common, but what do people fear most? Are phobias more common than other phobias?

Afraid of creepy reptiles? Are you afraid of snakes? Well, you are not alone. According to the American Psychiatric Association, phobia is the most common mental illness among women and the second most common among men.

Phobia is the cause of obvious fear and symptoms, such as dizziness, nausea, and difficulty breathing. In some cases, these symptoms escalate into a full-blown panic attack.

Common phobias usually involve the environment, animals, fear of injections and blood, and certain other conditions.

A phobia is an irrational fear of an object, situation, or living thing. Fear is a natural response to danger, and phobias usually occur as a result of a reaction that is unlikely to cause actual harm. Phobia is characterized by severe distress, which often causes the person to avoid fear.

Everyone has some kind of phobia. Whether you are willing to accept it or not! My phobia is the fear of driving, flying, spiders, cancer, oceans, clowns and narrow spaces. What is your phobia?

Although most people have heard of common phobias, such as fear of heights and fear of heights, there are many strange and little-known topics about phobias. Here are 15 strange phobias that you may never have seen before. You can test your guts!