On Thursday's edition of Market Checkup, The Motley Fool's health-care focused show for investors, Fool health-care analyst David Williamson sheds some light on what's driving the biggest movers in the health-care space today.

In this segment, David takes a look at two of the day's biggest losers in the health-care space. Medical equipment maker Hill-Rom (NYSE:HRC) fell by more than 15% today, after reporting an abysmal quarter. Net income fell by an astounding 45%, with the company lowering 2014 guidance and cutting 350 jobs within the company. Meanwhile, Herbalife (NYSE:HLF) is being called into question, yet again, for potentially being a pyramid scheme. This time, U.S. Senator Ed Markey of Massachusetts is the one calling for an investigation, both from the SEC and the Federal Trade Commission. David takes a look at the inside story on these two stocks in the video below.

Nervous about Obamacare affecting your health-care sector investments?
Obamacare seems complex, but it doesn't have to be. In only minutes, you can learn the critical facts you need to know in a special free report called Everything You Need to Know About Obamacare. This FREE guide contains the key information and money-making advice that every American must know. Please click here to access your free copy.

David Williamson has no position in any stocks mentioned. The Motley Fool has the following options: long January 2015 $50 calls on Herbalife Ltd.. 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.