Mayo Clinic Minute: Why lifestyle choices are biggest medical issue

Heart disease, stroke and diabetes are three of the most common causes of death in the U.S., but, according to Mayo Clinic’s Dr. Gregory Poland, the bigger health crisis facing the country actually may be the cause behind them.

In this Mayo Clinic Minute, Dr. Poland explains why lifestyle choices, such as diet and exercise, are to blame, and why he doesn't see the crisis getting better any time soon. Ian Roth reports.