Weight-loss surgery has been working to combat obesity for years now. But how long does it keep the weight off?

Wearing seat belts and driving safely are two ways to protect yourself from dying in a car accident. Losing weight might be another one.

As childhood obesity has increased, researchers have looked for ways to help children reach healthy weights. Does increasing kids' physical activity make enough of a difference?

As rates of obesity continue to increase, more and more Americans are developing diseases tied to their excess weight. According to a recent study, gout appears to be one of those diseases.

Go ahead and tweet that post to your exercise buddy. It may just help shed unwanted pounds. Twitter usage can help people lose weight through the social networking site by supporting others in their attempts to get leaner.

Being obese is just plain unhealthy. All that excess fat can make outcomes worse for patients with any of a number of diseases, including rheumatoid arthritis.

If you are obese, you are putting extra strain on your joints. That excess weight is known to make osteoarthritis worse. Could obesity also make it harder to treat rheumatoid arthritis?

Young people that suffer from obesity may think they are healthy enough. But their obesity is putting them at risk for diseases usually found in older people.

If you are overweight, those extra pounds could be adding to the wear and tear on your knee joints. Gaining more weight could make knee pain and function even worse.

As rates of obesity continue to rise, so too do rates of related diseases. Rheumatoid arthritis could be one of those related diseases.