The Effect of Progressive Muscle Relaxation and Deep Breathing Exercises Applied to Palliative Care Cancer Patients on Dyspnea, Fatigue, and Self-Care Behaviors

Inclusion Criteria: * Being 18 years of age or older Being literate (able to read and write) Having no significant hearing or visual impairment that prevents communication or cooperation Receiving treatment in the palliative care unit Having a confirmed medical diagnosis of cancer Having a Glasgow Coma Scale (GCS) score of 10 or higher Being able to communicate via telephone and SMS for post-discharge follow-up Having a Common Terminology Criteria for Adverse Events (CTCAE) Dyspnea Classification of Grade 3 or below Having an ECOG Performance Status Scale score of 3 or below Having a Hemoglobin (Hb) value of 8 gm/dL or higher Volunteering to participate in the study and providing informed consent Exclusion Criteria: * Currently practicing or having recently practiced Progressive Muscle Relaxation (PMR) or deep breathing exercises actively Having a primary respiratory system disease diagnosis (such as COPD, asthma, or pneumonia) Having a medical diagnosis of dementia, agitation, or delirium Receiving Continuous Positive Airway Pressure (CPAP) or Bilevel Positive Airway Pressure (BiPAP) support Being on active antipsychotic or sedative medical treatment Having a Common Terminology Criteria for Adverse Events (CTCAE) Dyspnea Classification of Grade 4 or higher