الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The obesity epidemic is a global problem, which is set to increase over time. However, the effects of obesity on the respiratory system are often underappreciated. Many obese patients have breathlessness on exertion, and the negative physiological effect of obesity on lung function has been demonstrated in numerous studies. However, the influence of obesity in respiratory diseases is complex and goes beyond the obvious mechanical and physical consequences of weight gain and its associated inflammatory and metabolic disorders. Subclinical hypothyroidism is a common disorder with a high prevalence rate of up to 18% in the general population, especially among elderly people and women. Sleep disturbances have become serious public health problems that are frequently found in the general population. It has a negative impact on quality of life and health behaviors Obstructive sleep apnoea (OSA) and subclinical hypothyroidism are relatively frequent disorders that may be causally linked. However, discordant results exist on the prevalence and severity of OSA in subclinical hypothyroidism The mechanisms proposed to explain how hypothyroidism might cause OSA include mucoprotein deposition in the upper airway, decreased neural output to the upper airway musculature, obesity, and abnormalities in ventilatory control. The aim of work of the present study was to Evaluate the prevalence of previously unknown hypothyroidism or subclinical hypothyroidism and sleep disordered breathing (SDB) in adult male and female obese patients to determine possible association between them.