Up until right now if we was looking to lose a little fat we will begin a diet, throw in some "fat burning" physical exercise like walking, jogging, cycling etc and wait with bated breath until the excess weight disappeared.
Well we realize seeing that this is not working with two thirds of the population overweight or obese. These earlier methods of reducing unneeded body fat have been in existence since the 1980's and it's time to get activity and weight-loss in general away from the dark ages.