Entropy principle for human development, growth and aging

✍ Scribed by Ichiro Aoki

• Book ID: 104154828
• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 509 KB
• Volume: 150
• Category: Article
• ISSN: 0022-5193
• DOI: 10.1016/s0022-5193(05)80333-9

✦ Synopsis

Entropy productions within nude subjects in respiration calorimeters are calculated from the corresponding energetic data obtained by Du Bois et al. (1952, J. Nutr. 48, 257-293.). The entropy production for men is constant at environmental temperatures from 24-34°C. The metabolic entropy production comprises 98.6% of the total entropy production. The entropy production for women shows a minimum at 30°C (the middle of the neutral zone), a small rise in the cold zone and a trend toward a rise in the warm zone; the average entropy production for women is 8.7% smaller than that for men. The entropy production rises from 0-2 years of age, and decreases rapidly from 2-25 years of age and then gradually to 85 years of age. The entropy production does not seem to achieve a minimum or a level in the lives of men and women. Based on these results, a three-stage hypothesis of entropy production in human life is proposed.