Less Sleep Can Lead to Weight Gain and Obesity

Topic: Health

Researchers at Columbia University found that adults who got less sleep gained weight and became more inactive. The study included 95 adults who normally slept between 7-8 hours a night, but delayed their bedtime by 90 minutes for six weeks.

Getting enough sleep is essential for our health. Researchers at Columbia University Vagelos College of Physicians and Surgeons wanted to know how much sleep we really need. They studied 95 adults who normally slept between 7-8 hours a night.

The researchers asked these adults to delay their bedtime by 90 minutes for six weeks. During this time, they wore wrist monitors that tracked their sleep and physical activity. The researchers also measured the adults' body weight, waist circumference, and body composition.

What did they find? The adults who got less sleep gained an average of one pound in just six weeks. They also became more inactive, spending 17 minutes more per day sitting around. This is a problem because people who are more sedentary have a higher risk of chronic diseases like heart disease and diabetes.

The researchers were surprised by their findings. They thought that the adults would only gain weight if they got extremely little sleep, but even losing just 80 minutes of sleep per night for six weeks made a big difference.

Why It Matters

This study is important because many Indians are not getting enough sleep. In fact, about 30% of adults in India get less than 7 hours of sleep each night. If we don't get enough sleep, we're more likely to gain weight and develop chronic diseases like heart disease and diabetes.

Key Facts

• 95 adults participated in the study, with an average age of around 30-40 years old.
• The researchers found that losing just 80 minutes of sleep per night for six weeks led to a one-pound weight gain.
• The adults who got less sleep became more inactive, spending 17 minutes more per day sitting around.
• About 30% of adults in India get less than 7 hours of sleep each night.
• Chronic diseases like heart disease and diabetes are major health problems in India.

Key Terms

sedentary

spending too much time sitting or being inactive

cardiometabolic risk

the risk of developing conditions like heart disease, diabetes, and high blood pressure

Implications

This study is important because many Indians are not getting enough sleep. In fact, about 30% of adults in India get less than 7 hours of sleep each night. If we don't get enough sleep, we're more likely to gain weight and develop chronic diseases like heart disease and diabetes.