What is it that makes some people's lives so happy and fulfilled? Why do some people stay resolutely optimistic? This kind of happiness is not necessarily the result of your genes or luck. Rather, it can be cultivated and learned. In this book Charmaine Yabsley looks into the what action can be taken to boost your serotonin naturally and get happy. Yabsley begins by analyzing the symptoms of happiness and depression. The books is then divided into...