A new study has identified a link between stress hormones and the recurrence of cancer.
UPI reports the findings may explain why cancers can return long after seemingly being cured with chemotherapy or surgery.
The study showed stress hormones and immune cells called neutrophils may awaken dormant cancer cells and cause tumors to regrow -- even after treatment -- according to a study published Wednesday by Science Translational Medicine.
Tumor recurrence may be facilitated by common stress.