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Nat'l Inst. of Health (49)

Child Development
Children between the ages of 6 and 12 grow and mature at very different rates. It's hard to say what "normal" is. There can be big differences in height, weight and build among healthy children. Diet, exercise and genes are all factors. Some...

Child Nutrition
A healthy diet helps children grow and learn. It also helps prevent obesity and weight-related diseases, such as diabetes.

Dietary Fats
Fat is a major source of energy and aids your body in absorbing vitamins. It's important for proper growth, development and keeping you healthy. Fat provides taste to foods and helps you feel full. Fats are an especially important source of calories...

Folic Acid
Folic acid is a B vitamin. It helps the body make healthy new cells. Everyone needs folic acid. For women who may get pregnant, it is really important. When a woman has enough folic acid in her body before and during pregnancy, it can prevent major...

Food Safety
It is upsetting to think about, but the foods you eat to stay healthy can make you sick. Fortunately, there are many things you can do to protect yourself and your family from foodborne illness. There are things you can do in the grocery store, like...

Hair Diseases and Hair Loss
Did you know that the average person has 5 million hairs? Hair grows all over your body except on your lips, palms and the soles of your feet. It takes about four months for healthy hair to grow an inch. Most hairs grow for up to six years and then...

Lung Transplantation
Lung transplantation is surgery to replace one or both diseased lungs with a healthy lung or lungs from a donor. During the operation, the surgeon makes a cut in the chest and removes the diseased lung. The surgeon then sews the new lung to the main...

Sun Exposure
Ultraviolet (UV) rays are an invisible form of radiation. They can penetrate your skin and damage your skin cells. Sunburns are a sign of skin damage. Suntans aren't healthy, either. They appear after the sun's rays have already killed some cells...

Weight Control
If you are overweight, you are not alone. Sixty-six percent of adults in the U.S. are overweight or obese. Achieving a healthy weight can help you control your cholesterol, blood pressure and blood sugar. It might also help you prevent...

Weight Loss Surgery
If you're very overweight and can't lose pounds with a healthy diet and exercise, surgery might be an option for you. The surgery is usually for men who are at least 100 pounds overweight and women who are at least 80 pounds overweight. If you are...