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Information on clinical trials and how to participate in a clinical trial.

Learn about treatments for overweight and obesity, including healthy eating, physical activity, weight-loss medicines, weight-loss devices, bariatric surgery.

Learn about risks for certain health problems if you are overweight or have obesity. Learn about emotional and social problems linked to overweight and obesity.

Many factors can affect your weight, leading to overweight, obesity, or extreme obesity. Being overweight or having obesity may lead to certain health problems.

Learn how healthy eating and physical activity may help you lose weight. Eating healthy foods and being physically active may help you stay at a healthy weight.

The terms “overweight” and “obesity” refer to body weight that is greater than what is considered normal or healthy for a certain height.

Knowing your body mass index (BMI) and waist size help tell if you are at a normal or healthy weight, are overweight, or have obesity.

Moving more and eating better can help you improve your health and keep up with the demands of your busy life. Find out what you can do to get fit and healthy.

Walking is a great way to be more active and to gain health benefits. Learn how to start and stick with a safe walking program.

Learn about the health benefits of physical activity with this detailed guide on how to get active and stay active.