In this treatment, the patient watches another patient face their fear, and the original patient realizes how irrational their fear is. Therapists also sometimes use relaxation and hypnosis, although they are not as popular or successful as exposure therapy and modeling. During relaxation, the therapist shows the effects (increased heart rate, rapid breathing, etc.) of fear and teaches the patient how to control these effects. Recently, medications have been used to control the effects and panic associated with phobias. Anti-anxiety medications are used in situations to eliminate the physical effects of the phobia. In fact, anti-anxiety drugs have the same effect as exposure therapy, both reducing blood flow to the amygdala, which is the part of the brain that registers fear. Researchers are trying to create a treatment involving PET, MRI and CT scans to further understand the brains of people with phobias. Neurologists are also researching the brain to not just cure phobias, but prevent them all