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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.

Previous studies in different ethnic groups show changes in heart rate, respiratory rate, cortisol cycle, and sleep-wake cycle throughout life. Our purpose is to verify such changes by comparing the values of each variable before and after puberty. Puberty is associated with the end of growth and is an important point in our theoretical framework: when growth ends, changes occur in the geometry of the biological system. At the same time, this causes phase changes in the oscillatory variables, which are seen as chronodisruption. The results confirm the changes found by other authors in the evolution of the variables throughout life. Then, we can conclude that the variables studied present phase changes when growth ends, in accordance with the proposed theoretical framework.