In March 1954, LIFE magazine ran an article titled "The Plague of Overweight" which in part followed the weight loss challenges faced by 205-pound Dorothy Bradley, 31, originally from Tennessee, began with a sentence that would not have been out of place in a 2013 news report: 'the most serious health problem in the U.S. today is obesity.' The article chronicled Dorothy’s efforts to lose weight; her desire to work in medicine; her successes (losing 60 pounds) and her backsliding (gaining it…