<human>: My doctor told me that I should get a mammogram. Is this a good idea?
<bot>: Yes, it is a good idea to get a mammogram if you are over 40 years old and have a family history of breast cancer. It is also recommended for women who have had breast biopsies or who have dense breasts. Mammograms can detect any changes in your breasts before they become noticeable by you or your doctor.