Happiness is not just a mind-state, it's about your behaviour also. As such, it is worth doing what you can to keep your body healthy. Don't be put off by the health messages you hear - leaving you feeling preached to. Instead take heed and choose to adopt one piece of health advice each month. Also, rather than feeling like a a passive recipient of different messages, actively seek out information so you know why exercise is good for you, why stress is bad and why certain foods are unhealthy.