According to health experts, depression is epidemic in the Western world. But what exactly do they mean by depression? A chemical imbalance in the brain? A consequence of over-stimulation and overload in the Internet age? Or is depression an inescapable aspect of the human condition? Many millions of people, including children, take prescribed antidepressant drugs, the sales of which generate billions in revenue for the companies that make them. But, as Dr Weil displays in his landmark book Spontaneous Happiness, there is a new field of Integrative Mental Health that is beginning to recognise that drugs are not the sole option for treating such emotional disorders. Spontaneous Happinessis a decisive answer to the deluge of poor information in the popular media about depression - which may soon become the most significant disease of the twentieth century - and the sourcebook for a new paradigm of mental health treatment.