Sleep is a vital biological function that directly influences metabolic regulation, hormonal balance, and energy homeostasis. Recent scientific evidence demonstrates that sleep duration and quality play a decisive role in physiological weight loss, affecting fat oxidation, appetite control, insulin sensitivity, and body composition. This paper presents the relationship between sleep and weight loss. Through an in-depth review of contemporary scientific literature and synthesis of experimental findings, the study highlights that insufficient or disrupted sleep significantly reduces fat loss efficiency while promoting hormonal dysregulation and lean mass loss. The results emphasize that sleep optimization should be considered a core component of evidence-based weight management strategies.
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