Prolonged Sleep Restriction Affects Glucose Metabolism in Healthy Young Men

• Main Authors: Wessel M. A. van Leeuwen, Christer Hublin, Mikael Sallinen, Mikko Härmä, Ari Hirvonen, Tarja Porkka-Heiskanen
• Format: Article
• Language: English
• Published: Hindawi Limited 2010-01-01
• Series: International Journal of Endocrinology
• Online Access: http://dx.doi.org/10.1155/2010/108641

This study identifies the effects of sleep restriction and subsequent recovery sleep on glucose homeostasis, serum leptin levels, and feelings of subjective satiety. Twenty-three healthy young men were allocated to a control group (CON) or an experimental (EXP) group. After two nights of 8 h in bed (baseline, BL), EXP spent 4 h in bed for five days (sleep restriction, SR), followed by two nights of 8 h (recovery, REC). CON spent 8 h in bed throughout the study. Blood samples were taken after the BL, SR, and REC period. In EXP, insulin and insulin-to-glucose ratio increased after SR. IGF-1 levels increased after REC. Leptin levels were elevated after both SR and REC; subjective satiety remained unaffected. No changes were observed in CON. The observed increase of serum IGF-1 and insulin-to-glucose ratio indicates that sleep restriction may result in an increased risk to develop type 2 diabetes.