How Sleep Affects Your Metabolism: What Studies Reveal

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Poor sleep disrupts hormones, fuels cravings, and harms metabolism. Healthy sleep supports your lifestyle, nutrition, and overall well-being.

Think skipping sleep is harmless? Think again. Science shows that poor sleep messes with metabolism in surprising ways.

  • Hormonal Disruption
    Sleep loss decreases leptin (satiety hormone) and increases ghrelin (hunger hormone). Result? More cravings.
  • Insulin Resistance
    Even one night of poor sleep can impair insulin sensitivity, pushing your body toward fat storage.
  • Energy & Performance
    Lack of sleep = less motivation to exercise, more reliance on sugar and caffeine.
  • Long-Term Risks
    Chronic sleep deprivation is linked to obesity, type 2 diabetes, and metabolic syndrome.


Sleep isn’t just rest—it’s metabolic fuel. Without it, even the best diet and workout plan can fall apart.

Luckily, Caloriq helps you connect sleep, nutrition, and lifestyle data—so you see the bigger picture of your health.

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