A recent study by Columbia University’s Vagelos School of Medicine reveals that even mild sleep deprivation—such as sleeping five to six hours per night—can contribute to weight gain and increase the risk of obesity-related conditions like heart disease and type 2 diabetes.The research involved 95 adults who were monitored over six weeks of delayed bedtime, reducing their sleep by approximately 80 minutes.Results showed an average weight increase of 0.45 kilograms during this period, along with increased sedentary time and changes in hormone levels.

While leptin—a hormone that suppresses appetite—remained elevated, the study highlights the broader health impacts of chronic sleep restriction, including heightened insulin resistance and immune cell activity linked to inflammation.

These findings challenge modern lifestyles that prioritize activities over sleep, emphasizing the need for further research into the mechanisms behind sleep’s role in weight management and metabolic health.

The study underscores that even minor sleep deficits can have measurable effects on physical health, urging individuals to reassess their sleep habits to mitigate long-term risks.