Migraines Linked to Breast Cancer
The relationship between migraine and breast cancer was dependent on the estrogen receptor (ER) and progesterone receptor (PR) status of the tumor. Women with no history of migraine were at significantly reduced risk of ER+/PR+ ductal carcinoma, ER+/PR- ductal carcinom, and ER+/PR+ lobular carcinoma. The risk of ER-/PR- ductal carcinoma and ER+/PR- lobular carcinoma did not differ significantly between migraineurs and women without migraine.
This study tells us that by altering exposure to hormones during premenopausal years, we can reduce the risk of developing breast cancer in the postmenopausal years.