Metabolic Autophagy

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Your cells constantly assess nutrient status to decide whether to conserve energy or promote growth. Caloric restriction and energy deprivation are among the few proven methods to increase lifespan across species, activating metabolic pathways that enhance adaptability to stressors. Metabolism consists of two key processes: anabolism, which builds biological molecules for growth, and catabolism, which breaks down molecules to release energy. The concept of autophagy, or "self-devouring," is central to this practice. By balancing anabolism and catabolism, you can effectively extend your lifespan. Autophagy allows healthy cells to consume old, weak ones, converting them into energy and maintaining homeostasis. This process has numerous longevity benefits seen in various species. The book offers guidelines on the anabolic-catabolic cycles related to nutrition and exercise, emphasizing that it is not a universal solution but a specific protocol. It explores what promotes longevity in humans, the prevalence of disease and obesity, and how intermittent fasting can enhance health. Additional topics include the roles of nutrient regulators, circadian rhythms, a list of longevity-boosting foods, and supplements that support muscle growth. Siim Land, a best-selling author and biohacker, presents daily practices to bridge the gap between longevity and high performance.