Research shows that overweight individuals are more likely to suffer from high blood pressure and cholesterol as well as diabetes and other ailments. Proper nutrition and regular exercise can help prevent many different diseases and contribute to general well-being. According to the Centers for Disease Control and Prevention, 67 percent of adults in the United States are overweight or obese, and there has been a 100 percent increase in child obesity since 1980.  The Truth About Physical Fitness and Nutrition takes an in-depth look at key health matters, providing useful facts about practicing healthy hygiene, achieving fitness, and avoiding risky behaviors. This accessible new A-to-Z guide features up-to-date information in a user-friendly format. Entries include: Body image Calories and weight Carbohydrates and exercise Exercise and strength Gender and nutrition Mental health and physical activity Nutritional guidelines and healthy diets Obesity Types and benefits of aerobic exercise Vitamins.