The Hidden Danger of Car Exhaust

A study just published in an American Heart Association journal links atherosclerosis -- hardening of the arteries -- to car exhaust. The diesel exhaust fumes robbed what is generally known as good cholesterol, HDL, of its protective powers, and showed non-reversed blood and liver damage.

In this video, health-care analyst David Williamson discusses the implications of this study and what impact it could have for investors in a variety of industries, including transportation, energy, and health care.

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The article The Hidden Danger of Car Exhaust originally appeared on Fool.com.

David Williamson has no position in any stocks mentioned. Follow David on Twitter: @MotleyDavid.The Motley Fool recommends and owns shares of Cummins and Tesla Motors . Try any of our Foolish newsletter services free for 30 days. We Fools don't 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.

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