Benson Relaxation Exercises and Sleep Quality in Lung Cancer Patients

Inclusion Criteria: * Patients aged 18 years and over, * Have been diagnosed with lung cancer and be receiving inpatient treatment, * Be conscious and able to communicate, * Agree to participate in breathing exercises during the study, * Score above 5 on the PSQI, * Sign a written informed consent form. Exclusion Criteria: * Patients under 18 years of age, * Those with additional mental or cognitive disorders, * Those with physiological barriers to performing breathing exercises, * Those unable to complete the programme during the study period, * Those with a PSQI score above 5, * Those who violated the study protocol, •. Those with an oxygen saturation value below 90, * Those scoring above 5 on the Visual Pain Scale, * Those who have previously practised yoga or meditation, * Patients with haemoptysis, * Patients taking any anxiolytic or hypnotic medication. * During the 15 days of Benson relaxation exercise, patients in both the intervention and control groups will not be allowed to perform the exercise if their O2 saturation and pain level changes meet the exclusion criteria.