Fans tailgate outside Heinz Field in Pittsburgh before an NFL divisional playoff football game between the Baltimore Ravens and Pittsburgh Steelers, Saturday, Jan. 15, 2011.
Antonio Garcia re-stocks the beverages at The Corner Market in Washington, D.C., in 2010. Study author Jean Welsh says that sweetened beverages tend to be the biggest source of added sugar.
A Dutch man rides his bike by windmills in Kinderdijk, the Netherlands in 2007. Dutch researchers have found that the ability to ride a bike can help doctors distinguish between two similar forms of Parkinson's disease.