Cognitive-Behavioral Therapy (CBT) is considered to be one of the most rapid therapies there is when it comes to getting quick results. CBT is both brief and time-limited in comparison to other types of therapy. Cognitive-Behavioral Therapy is based upon the idea that our thoughts, not external events like people or situations, are actually the cause of our feelings and behaviors. What this tells us is that we have a lot more control than we think and we can change things by changing our thoughts. In light of this, we have to ask ourselves what the research says about this groundbreaking therapy.