Lifestyle habits like tobacco and alcohol consumption along with level of physical activity have wide-reaching impacts on health.

Getting the correct dose of medication into the bloodstream means patients get the most from their medications. However, smoking may affect that process.

Some have suggested that e-cigarettes can be a beneficial tool for smokers trying to cut back on their tobacco habit, but evidence may be lacking for these claims.

The dangers of drunk driving are widely known. But are statistics about deaths from this dangerous activity accurate?

More than a third of children in the United States live with a tobacco smoker, and allergic diseases are becoming increasingly common among children. Could there be a connection?

Smoking increases the risk of getting many kinds of cancers. In the case of breast cancer, smoking combined with other factors can make that risk much greater.

About one out of 10 teenagers uses illegal drugs or pharmaceutical medications for nonmedical purposes. And health professionals aren't sure what the solution to this public health problem is.

It's important to teach teens not to drive while under the influence. But there may be risk factors parents can watch for in doing so.

Healthy diet and lifestyle choices reduce the risk for many diseases. What effect these pre-diagnosis choices have on survival after colon and rectal cancer has become clearer.

Opioids are strong painkillers that can help manage pain when used properly. But they can cause serious harm, even death, when used inappropriately.