It has been known for some time that exercise is important for cancer patients, but few studies have looked at the practicality of exercise programs and whether even a minimal workout can help. Exercise can reduce cancer-related fatigue, improve sleep, boost a sense of wellness, and reduce the recurrence of certain types of tumors. A Mayo Clinic study published in the Journal of Pain and Symptom Management found that a brief, at-home exercise program — dubbed the Rapid, Easy, Strength Training program, or REST, — was sufficient to increase cancer patients' mobility and reduce fatigue.