Sleeping In on Weekends Harms Your Health.

In 2023, Daniel P. Windred and a team studied sleep patterns in thousands of adults across multiple cohorts, finding that sleeping in on weekends, called social jetlag, disrupts your body’s internal clock. Each hour of jetlag raises heart disease risk by 11% and worsens mood, obesity, and unhealthy habits like smoking or poor diet. A 2019 study by C.M. Depner showed that catching up on sleep after five short nights still caused 10-15% worse insulin sensitivity and higher calorie intake, leading to weight gain risks.

Women sleeping in by 2+ hours had poorer heart health, and teens faced 20-30% higher depression and anxiety risks. Nurses with social jetlag showed 15% worse sleep quality and more metabolic issues like high blood pressure. Consistent sleep schedules cut these risks and boosted academic performance in students by 10-15%.

Stick to a fixed bedtime and wake-up time, even on weekends, for better health.