The American Heart Association (AHA) has identified seven simple steps people can take to reduce their risk of heart disease. But new evidence suggests that the AHA's "Life's Simple 7" may wind up benefiting much more than patients' hearts. {C}

Obesity raises the risk for issues like cardiovascular disease and diabetes, but could obesity also increase the risk for an infection of the gut? Researchers are exploring the possibility.

A hip or knee replacement may rid you of your arthritis pain. But you may also run the risk of infection after surgery.

For the most part, type 2 diabetes is caused by obesity. But there are other factors that may raise your risk of diabetes, including bacterial infection.

Obesity contributes to many health complications. However, a new study by Spanish researchers suggests that obesity may not increase the risk of death among people with swine flu.