Stress before cancer therapy could help deadly cells survive treatment, lead to disease recurrence

Patients who experience physical or psychological stress -- including rigorous exercise -- one or two days before a cancer treatment might be unknowingly sabotaging their therapy, new research suggests. Stress in the body -- even physical stress caused by intense exercise -- activates a stress-sensitive protein that can spark a series of events that allow cancer cells to survive such treatments as chemotherapy and radiation, according to the research.

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