This study focuses on postoperative cognitive function in obese patients. Specifically, it examines the impact of different anesthetic techniques on this function. The anesthetics investigated include sevoflurane, propofol, and remifentanil. The aim is to compare how these substances affect patients' cognitive abilities after surgery. The study involves patients with obesity, defined as a body mass index (BMI) over 30. The research was sponsored by Gaziantep City Hospital. This study has been completed.