The American Health Association doesn't have a monopoly on suggestions for leading a healthy lifestyle, but they certainly have some of the most authoritative information on exercise tips, weight management, and diet. On the "Healthy Living" site, visitors can learn about nutrition, physical activity, weight and stress management and more. There's also a section on helping kids become healthier....

The Mayo Clinic has a terrific public outreach program, and this website provides a rich array of materials that deal with common and uncommon medical conditions. The Healthy Lifestyle area contains a range of tools and information for a healthy lifestyle. The sections include Healthy Lifestyle Topics, Life Stages, and Healthy Recipes. Within each section, visitors will find multimedia clips,...

From the Centers for Disease Control and Prevention's (CDC) Office of Genetics and Disease Prevention and Division of Nutrition and Physical Activity, this Web siteis a collection of information on the relationship between obesity and genetics. It offers links to a variety of sources of information, including Web resources and journal articles on the problem of obesity, the relationship between...