Cancer is a leading cause of death worldwide, with millions of new cases diagnosed each year. Patients with cancer often experience a range of acute and chronic symptoms, including pain, anxiety, depression, fatigue, insomnia, and cognitive dysfunction. These symptoms, collectively known as the symptom cluster, significantly impact the quality of life (QoL) of cancer patients. Recent research has explored various non-invasive methods to alleviate these symptoms, with deep breathing exercises emerging as a promising intervention.
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