Research Ahi Evren Chest Cardiovascular Surgery Training Research Hospital will be performed in patients between the ages of 18-70 years, diagnosed with OSAS in the sleep laboratory. Sleep quality, physical activity, fear of movement and health literacy will be evaluated in OSAS patients. Evaluations will be made by phone In order for the study to be strong, it will be tried to reach the maximum patient that can be taken between June 2020 and October 2020.

