CBT is an active therapy aimed at understanding and addressing unhelpful thoughts and behaviours that are contributing to difficulty. It is based on the interconnection of thoughts, feelings and behaviours. CBT focuses on current circumstances and on the development of skills that lead to change. Skills can include problem-solving techniques or thought challenging. These skills are accompanied by mini ‘experiments’ to test out new ways of behaving. In some cases it may be useful to understand the origin of how early life experiences have contributed to the development of unhelpful thoughts and behaviours. CBT has been well researched and has been shown to be useful for a wide range of problems including depression, anxiety, eating disorders and weight-loss.