Neck circumference is a predictor of metabolic syndrome and obstructive sleep apnea in short-sleeping obese men and women.

Metab Syndr Relat Disord. 2014;12:231-41

Cizza G, de Jonge L, Piaggi P, Mattingly M, Zhao X, Lucassen E, Rother KI, Sumner AE, Csako G, NIDDK Sleep Extension Study