Health Library

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  • Body Mass Index (BMI)

    Your body mass index (BMI) and waist size affect your risk of type 2 diabetes, high blood pressure, high cholesterol, and coronary artery disease. The following table shows the risk. Body mass index (BMI) and the risk for diseases Classification BMI Waist size and relative risk Men: less than 40...

  • Biliopancreatic Diversion With or Without a Duodenal Switch

    Discusses biliopancreatic diversion, surgery for obesity that makes the stomach smaller and bypasses part of the intestine. Looks at why the procedure is considered only for people who have not been able to lose weight other ways or whose health is at risk. Includes risks.

  • Obesity: Should I Have Weight-Loss Surgery?

    Guides you through decision about weight-loss surgery. Covers health problems like high blood pressure and type 2 diabetes that can be caused by obesity. Lists reasons for and against surgery. Includes an interactive tool to help you make your decision.

  • Calluses and Corns

    What are calluses and corns? Calluses and corns are areas of thick skin caused by pressure or friction. They may cause pain when you walk or wear shoes. Calluses usually form on your hands or feet. They usually don't need treatment. Corns have an inner core that can be soft...

  • Dietary Guidelines for Good Health

    The Dietary Guidelines for Americans provide tips for eating well and staying healthy. They can help you reduce your risk for long-term (chronic) diseases. The guidelines recommend that adults: Eat lots of fruits, vegetables, whole grains, and low-fat or nonfat dairy products. Try to balance eating with activity. This...

  • Added Sugars

    Foods like milk and fruits have naturally occurring sugars. Added sugars are those that don't occur naturally in a food or drink but are added during processing or preparation. They add calories but little nutrition. They can cause weight gain. The Dietary Guidelines for Americans strongly recommend limiting foods and...

  • Recommended Servings for Adults

    You can use the USDA food guide to make healthy choices about what you eat. The chart below shows the recommended amounts for adults to eat from each food group. These amounts are based on a diet of 1,600 to 2,400 calories a day. For a food guide that shows...

  • Bowel Disease: Caring for Your Ostomy

    Caring for your ostomy is an important part of maintaining your quality of life. You will need to: Empty your pouch as needed. Replace your pouching system as needed (usually every 3 to 7 days). This may include measuring your stoma (the exposed section of intestine) and cutting the barrier...

  • Living With an Ostomy

    Right after the ostomy surgery, your activities will be restricted to ensure healing. During this time, don't lift more than 10 lb (4.5 kg) for 6 weeks. This decreases the risk for hernias. After this period, you probably will be able to resume normal activities. Noncontact activities, such as swimming,...

  • Hepatitis B Treatment Recommendations

    The American Association for the Study of Liver Disease has made recommendations for treating long-term (chronic) hepatitis B. These recommendations are based on the presence of hepatitis B antigens in your blood, the level of hepatitis B viral DNA ( HBV DNA) in your blood, and the level of the...


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