How Sleep Duration Effects Obesity Risk in Children
Sleep, like PA and diet, plays an important role in the growth, maturation, and health of children and adolescents by allowing for the diurnal rhythm of hormones related to growth, maturation, and energy homeostasis (16). A number of biological mechanisms have been proposed to link sleep duration and obesity (17). For example, one theory posits that children with short sleep have low caloric intake and expenditure, given that sleep deprivation often leads to changes in the structure of sleep stage and results in fatigue, daytime sleepiness, somatic and cognitive problems, and low activity levels (18,19). Previous studies indicate that sleep deprivation results in changes in levels of several hormones including leptin, ghrelin, insulin, cortisol, and growth hormone (20–22). These hormonal changes may contribute to energy imbalance and then lead to overweight or obesity.
Xiaoli Chen, May A. Beydoun, and Youfa Wang.
Childhood Obesity? A Systematic Review
The study was supported in part by the National Institute of Diabetes and Digestive and Kidney Diseases, the U.S. Department of Agriculture and the Johns Hopkins Bloomberg School of Public Health.