For Teens, Late Bedtime Can lead to Weight Gain: – FRIDAY, Oct. 2, 2015 – – Teens may have a new cause to take their parents’ guidance and go to bed early dapoxetine . Staying up later on weeknights may increase a teen’s threat of becoming overweight as time passes, a fresh study says. For the study, researchers analyzed data from a lot more than 3,300 American teens and found that each extra hour of late bedtime was connected with a far more than two-point upsurge in body mass index . BMI can be an estimate of body fat based on height and weight. The link between past due bedtimes and BMI boost was not suffering from total sleep time considerably, amount of exercise, or time spent before computers or televisions, the investigators found.