Breast cancer occurs when the DNA in a breast tissue cell is damaged, and the cell reproduces too rapidly. But what causes this DNA damage? Scientists are still researching to find the answer, so no one truly understands the causes of breast cancer. We do know that exposure to estrogen can be a factor in who gets breast cancer.
As I explained in an earlier article, risk factors are not the same as causes. They are conditions that are known to be more common in people who get breast...

