In the following video, Motley Fool health care bureau chief Brenton Flynn discusses one factor that could represent both a major opportunity and a risk to health insurance company investors next year: the individual mandate -- making health insurance a requirement -- which goes into effect in 2014. In the video, Brenton tells us how a flood of new health insurance customers represents a huge opportunity, but there's a catch.

Brenton Flynn has no position in any stocks mentioned. The Motley Fool recommends UnitedHealth Group and WellPoint. The Motley Fool owns shares of WellPoint. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.