People who are dieting are commonly told to reduce portion size. However, a new review shows that changing portion sizes to affect calorie intake is a more complicated issue.

Many people use herbal products as alternatives or supplements to medication. But are they really taking what they think they're taking?

One of the frustrating facts about cancer is that doctors can’t tell if it’s going to come back after treatment. This may be changing, though, for lung cancer. An imaging technology has been found to be able to predict who may need more treatment.

For people who show signs of type 2 diabetes, controlling weight may be a key part of keeping their condition from getting worse. A recent study suggests that one combination medication could play a role in preventing diabetes.

Rheumatoid arthritis and psoriatic arthritis share many characteristics. While a certain class of medications — called anti-TNFs — has been shown to be a helpful treatment for rheumatoid arthritis, it remains unclear how well they work for patients with psoriatic arthritis.

While only a small percentage of children have high blood pressure, those who do may face serious health problems. Overweight children may be especially at risk yet show no signs.

As women age, osteoporosis — a condition that makes the bones weak and more likely to break — becomes a greater concern. As a result, preventing osteoporosis may become more important for older women. 

Anorexia is a serious eating disorder that can lead to hospitalization. Those hospitalized for it often require "re-feeding" to recover.

Children with autism may face a number of challenges as they are growing up. And some of those challenges may continue into adulthood as well.

Reliable and consistent care for HIV-infected people is a necessity. Using multiple care centers for treatment may not allow patients to get the right amount or kind of care.