The Role of Sleep in Metabolic Health and Weight Management

Sleep and Hunger Hormones

NIH research has found associations between poor sleep and elevated ghrelin (the hunger hormone) and reduced leptin (the satiety hormone). This hormonal shift may contribute to increased caloric intake among individuals who consistently sleep fewer than 7 hours per night.

Sleep and Insulin Sensitivity

Short sleep duration has been associated with reduced insulin sensitivity in several studies. Impaired insulin sensitivity is a risk factor for metabolic syndrome and may complicate weight management efforts.

How Much Sleep Do You Need?

The CDC recommends adults get 7 or more hours of sleep per night. Consistently sleeping 6 hours or fewer is associated with a range of metabolic and cardiovascular risk factors in population-level research.

Practical Tips for Better Sleep

Evidence-based sleep hygiene practices include maintaining a consistent sleep schedule, avoiding screens 60 minutes before bed, keeping your room cool and dark, limiting caffeine after noon, and managing stress through relaxation techniques. Consult your provider if you suspect a sleep disorder like sleep apnea.