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.
Another topic health-care investors need to keep up on is Obamacare, as the law will undoubtedly have far-reaching effects. The Motley Fool's new free report "Everything You Need to Know About Obamacare" lets you know how your health insurance, your taxes, and your portfolio will be affected. Click here to read more.
Follow David on Twitter: @MotleyDavid.