Health is defined by the World Health Organization as “a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity”. This means that to be in good health, we must take care of our bodies, our minds and emotions, and we must pay attention to our life-styles and surroundings.Being in good health means more than just being free from illness or disease. While being physically healthy is the first step to good health, good mental health and social well-being are also necessary. We have a chance to be in the best health when we are aware of all areas of good health and when we work toward improving ourselves in as many of them as we can. While making good food choices for a healthy and nutritious diet. It also means adopting behaviors that are beneficial to health, such as practicing adequate levels of physical activity, and avoiding harmful behaviors such as smoking, drug and alcohol abuse and exposure to sexually transmitted diseases. How we react to the challenges we face in life determines our mental health and happiness. Facing problems in a positive way, overcoming barriers, trying to make the best of a situation and seeking solutions all contribute to good mental health and well-being https://ebookcentral.proquest.com Pg6.