Good news! You're likely burning more calories than you thought when you're walking

Leading standardized equations that predict the number of calories burned under level walking conditions are relatively inaccurate -- counting too few calories in 97 percent of cases, say researchers. The standards -- in place for close to half a century and based on data from limited people -- assume one size fits all. Researchers have now developed a new standardized equation that data indicates is up to four times more accurate.