Moderate food portions, consistent exercise, and sufficient sleep are crucial for health maintenance and potential lifespan extension. Statistical evidence from various epidemiological and clinical studies demonstrates a strong correlation between these three lifestyle factors and increased longevity. The author, who avoids smoking, alcohol, and illicit drugs, and has minimal exposure to environmental hazards, acknowledges the limitations of changing his physical age, genetic makeup, or family history. Consequently, he has chosen to concentrate on modifiable lifestyle factors that can impact his lifespan. Through 15 years of his medical research work, he observed that many deaths are predominantly linked to four chronic diseases, particularly diabetes, with obesity often serving as a precursor. Unhealthy eating habits contribute to weight gain, while regular exercise is essential not only for body weight management but also for diabetes control. Additionally, adequate sleep duration and quality also play a significant role in the management of chronic diseases. Hence, he focused on these three critical factors to explore their effects on longevity. The author developed an estimated “health age" formula: Health Age = Real Biological Age * (1 + ((MI - 0.735)/0.735)/2) Age difference = health age - real age In this article, the author examined two outcomes—age discrepancy (Age Diff) and health age (H. Age) —through separate analyses, each related to three consistent lifestyle factors: food portion (Food P.), daily exercise (Steps), and sleep hours (Sleep H.). To analyze these two scenarios, he employs the space-domain Viscoplastic Medicine Theory (SD-VMT) energy model, facilitating a comprehensive understanding of the effects of these three lifestyle factors on the specified medical symptom of longevity. He also selected three normalization factors, i.e. his targets for these three factors, 0.4 for food portion (40% of his food portion in 2012), 16000 walking steps per day, and 7 hours of night sleep.
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