I. Introduction
OBSTRUCTIVE- Sleep Apnea/Hypopnea Syndrome is a sleep disorder, characterized by repetitive pharyngeal collapse. It is prevalent in 6% or more of the middle age population [1]. Patients diagnosed with OSAHS have high incidence of obesity, and exhibit increased risk of hypertension, ventricular failure, and stroke. An association between OSAHS and high morbidity and mortality due to cardiovascular and cerebrovascular causes has been established [1]–[3]. Patients with OSAHS suffer from fragmented sleep, habitual snoring, morning headaches, and depression. Risk of auto accidents for OSAHS patients equals about seven fold that of controls without OSAHS [2].