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Nature's Blueprint: Understanding Weight Through Genetics
Weight is significantly influenced by genetics, with studies showing that BMI is 60% heritable, even among twins raised separately. This highlights the complex interplay of heredity in weight management beyond mere metabolism. Various factors contribute to weight gain, including hormonal influences like leptin and ghrelin, stomach size, food intake enjoyment, exercise preferences, and sleep patterns. Different combinations of these traits can lead to substantial variations in weight among individuals, revealing that there are numerous pathways to obesity.