Sleep quality can greatly impact weight loss. Weak sleep patterns and duration can cause weight gain and loss. Effective weight management requires knowing the pathways that link sleep and weight. Sleep quality can affect weight loss in many ways:
Hormonal Regulation: Leptin and Ghrelin: Sleep deprivation can imbalance hunger-regulating hormones. Hunger hormone ghrelin rises while satiety hormone leptin falls. This imbalance can increase hunger and overeat.
Insulin Sensitivity: Inadequate sleep can lead to insulin resistance, causing cells to become less receptive to insulin. This can raise blood sugar and fat storage.
Cortisol Levels: Stress Hormone: Bad sleep raises cortisol, the stress hormone. Chronically high cortisol increases abdominal fat.
Energy Expenditure: Inadequate sleep can lower the body's resting metabolic rate, resulting in lower calorie expenditure at rest.
Increased Cravings for Unhealthy Foods: Sleep deprivation can impact the brain's reward centers, making high-calorie, sugary foods more tempting and increasing unhealthy snack cravings.
Circadian Rhythm Disruption: The timing of metabolic processes can be affected by irregular sleep patterns and disrupted circadian rhythms, thereby causing weight gain.
Physical Activity Levels: Fatigue from poor sleep quality might lower energy and motivation to exercise, affecting calorie expenditure. Poor sleep can lead to increased late-night snacking, which may involve unhealthy, high-calorie foods.
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