Cognitive behavioral therapy helps people identify negative or distorted thoughts that lead to anxious feelings and unproductive behaviors. CBT helps clients determine which thoughts are accurate, inaccurate, or negatively distorted. Through CBT, people can learn to replace limiting thoughts with more realistic thoughts. For example, a man wanting to be a doctor may change his thought from "I'm not intelligent enough" to "If I work hard and get help, I can manage medical school." Changing thoughts in this way can improve feelings of confidence and lead to productive studying behaviors. CBT takes time and effort but is effective for reducing anxiety and addressing other issues like depression.