Bedtime Affects Weight


A group of researchers from Berkeley and Columbia University looked at the relationship between bedtime and weight gain in young people. Their findings have been published in the journal Sleep. They followed over 3000 adolescents between 1994 and 2009. They found that a later bedtime during the workweek was associated with an increase in body mass index (BMI) over time. Even after controlling for sleep duration, screen time and exercise, the relationship was not attenuated. However, fast-food consumption was recognized as a mediator of the relationship. To summarise, if we want to keep off excess pounds we should get to bed earlier and obviously keep away from fast food!

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