Overweight Effects on Metabolic Rate, Chronic Diseases, Time Perception, Aging, and Lifespan: a Systematic Review

Abstract

Background: The hypothesis that metabolic rate is inversely correlated with lifespan has long been debating. Another area of controversy is an evidence of a relationship between metabolic rate and time perception, and aging. Aim: to study the impact of overweight and food intake on metabolic rate, time-flow perception, chronic diseases, aging, lifespan; difficulties in weight loss.Methods: Design: a systematic review. Setting and Participants: Web of Science, Scopus, Science Direct, Kopernio, PubMed, Mendeley were searched for articles published from January 1979 until March 2020. The study bases on a viewpoint supported by a systematic literature review of 3612 articles published worldwide.Results: In total, 107 full-text articles were assessed for eligibility. From them, 25 articles were excluded with reasons. Overweight and food intake are the main causes of accelerating metabolic rate. By age, the body should less calorie intake due to decreasing metabolic rate. Body capability to gain weight is integral indicator of body energy reserve that depletes after weight gain. Increased metabolic rate creates a delayed time-flow perception and accelerates aging. Metabolic rate and lifespan are inversely correlated. Weight loss is a good tool to delay aging and increase lifespan. Very-low-calorie diets and to manage metabolic intoxication should use at weight loss.Conclusions: The findings support overweight with overeating increases metabolic rate that in turn delays time-flow perception, increases disease, accelerates aging, limits lifespan. For weight loss has to manage a very-low-calorie diet.