<prompt> 50 yr old smoker, obese , hypeension patient is having loud snoring . He has 5 episodes of apnea per hour of sleep. What is the next best management for improvement of his symptom ?UvulopalatoplastyC.P.A.PWeight reduction and diet controlMandibular reposition surgery  <response>: C.P.A.P is the best management out of all . It has better outcomes in comparison to other techniques in terms of apneas ,hypoapneas , nocturnal oxygenation , symptoms and quality of life . 