Obesity is a multilayered and complex disease that has affected
             millions throughout the world. Scientists have struggled to find
             successful treatments to alleviate the problem. Obesity is a relatively
             new problem, as this global disaster was not a prevalent issue or a public
             health concern until the mid-20th century. The widespread obesity around
             the world came about so swiftly and profoundly that the only way it can be
             explained is that it must be an ecological, social, and cultural issue
             rather than an evolutionary occurrence. The specific causes for why there
             was a sudden increase in obesity have not yet been established; however,
             the underlying causes for obesity-excessive eating and lack of exercise-
             have always been known. [1] The obesity pandemic is indeed a new
             occurrence, but obesity has been a part of many societies since prehistoric
             times. Societal perception has shifted dramatically in the past century
             from the belief that obesity was primarily a cosmetic issue to an
             understanding that obesity is a medical and physiological issue. Despite
             public health efforts to educate and influence society, the obesity rate
             increased enormously due to factors leading to an increasingly sedentary
             lifestyle and deleterious dietary changes.
             Obesity can be dated back to over 20,000 years and the meaning behind
             obesity and societal perception changes frequently. Sometimes, overweight
             people were viewed in a positive light and sometimes they were viewed in a
             more pejorative fashion. For the majority of history, there was not usually
             an abundance of food and when someone was corpulent, they had survival
             advantages. During the renaissance period, fat people were perceived to be
             high class and affluent. On the contrary, studies of royal Egyptian mummies
             suggest that there were middle class fat and stout people; however, at this
             time, obesity was regard as objectionable and offensive. In An...