Poll results, congressional head counts, and federal deficits aren't the only numbers President Barack Obama has to worry about. Now, he's trying to walk off a marginally high cholesterol count.

Although Obama took the presidential motorcade to a speech Monday morning, he decided to walk back through Lafayette Park. A day earlier, his doctor recommended that he lower his cholesterol. The president told reporters he needed to "make sure that I'm walking off some of that cholesterol. That's a year of campaigning right there."

Obama had a physical exam Sunday morning, when he learned that his total cholesterol and so-called bad, or LDL, cholesterol had spiked into the borderline high range since his most recent reported exam in 2007.