Teenage girls who prefer to go to bed late are more likely to gain weight, compared to same-age girls who go to bed earlier, warn researchers.
For the study published in the journal JAMA Pediatrics, a total of 804 adolescents — 418 girls and 386 boys aged between 11 to 16 — were analyzed.
The children responded to questionnaires on their sleep habits and wore an actigraph – a wrist device that tracks movement, said researchers from the Kaiser Permanente, a healthcare company in the US.