Can have many forms, and is something that can be caused by a significant event or that can creep up on you over time. It affects the mind/body balance and at its most extreme can literally grind you to a halt both mentally and physically. It is often accompanied by insomnia. Hypnotherapy can be surprisingly effective even for long-term sufferers. It can help you to identify the causes of your depression and work with you to build a brighter sense of the future.