Add Yahoo as a preferred source to see more of our stories on Google. Can you remember feeling your stomach turning upside-down as a roller coaster takes a steep plunge on your TV screen? If you were ...

Step aerobics is a classic cardio workout. It has lasted for decades for a simple reason: it delivers results. The "step" is a 4-inch to 12-inch raised platform. You step up, around, and down from the ...