Women with higher levels of estrogen in their blood have higher levels of breast cancer.
Migraines are often triggered by low levels of estrogen.
The study appears in the journal Cancer Epidemiology, Biomarkers and Prevention.
Women with higher levels of estrogen in their blood have higher levels of breast cancer.
Migraines are often triggered by low levels of estrogen.
The study appears in the journal Cancer Epidemiology, Biomarkers and Prevention.