He stated that these warriors ate nothing but blood, meat and milk. Following the guidelines of nutrition experts, these people should have had frequent heart attacks; however, cardiograms showed they had no symptoms of heart disease. Furthermore, blood pressure did not increase with age nor did the subjects gain weight, two characteristics normally associated with increasing age. The author stated that the Vanderbilt experimenter was a "man of science" in that he accepted only what the data could support. When he tried to present his findings, critics silenced him and his career suffered