Keeping in mind the relationship between the basal metabolic rate and the change in weight in the aging process, we propose to generate a model of the same. As a result of data transformation, we obtained a graphic representation that is consistent with the original data. This representation manifested that after puberty, the parameter space loses its initial planarity. Thus, the model helps to sustain that the geometric phase changes that occur when the parameter space undergoes a gradual curvature, can contribute to explaining the biological aging process.