Antibiotics completely revolutionized the way medicine is practiced. But they brought a downside too — when bacteria learned to fight back.

New guidelines for treating certain diseases are sometimes issued to save money and improve patients' care. But doctors may need an extra push to follow them.

Often, more care is not necessarily better care. For certain conditions, such as bronchiolitis in children, extra medications or other treatments may not help recovery.

Many medical conditions do not come on suddenly but instead have warning signs first. Diabetes, for example, starts with increased insulin resistance.

There is a wide range of ways to look into the human body. Some of these involve higher costs and risks — especially for children — than others.

Sometimes factors in our environment increase our risk of a particular condition without actually causing that condition. Still, knowing those factors can be helpful, for example, when it comes to ADHD.

There is nothing like the smile of a child. And according to results of a new study, it looks like the US is improving in habits that help keep these smiles healthy.

A wide range of psychotropic medications are available to treat mental health conditions, including disorders in teens. But how many teens are actually taking these medications?

Sometimes one public health initiative can have unintended consequences. Could this have happened with the chickenpox vaccine and shingles?

Sometimes it's easy to forget how common many diseases were before vaccines for them were introduced. When the disease is not around, people may not notice as much.