Lifestyle Physical Activity and Health -- Background and Key Physical Activity Concepts -- Physical Activity and Cardiovascular Disease Risk Reduction and Treatment -- Physical Activity and Cancer Prevention and Treatment -- Physical Activity and Women's Health -- Physical Activity and Youth -- Physical Activity and Older Adults -- Physical Activity for Individuals with Chronic Conditions -- Physical Activity, Weight Gain and Obesity -- Physical Activity, Cognition and Brain Health -- The Role of Physicians in Promoting and Prescribing Increased Physical Activity -- Exercise Prescription : Practical Applications -- Overcoming Sedentary Behavior -- Promoting Regular Physical Activity.