you know, a lot of people talk about this, gulianna rancic, a host on e spoke candidly about this.>> through my attempt to get pregnant for the third time through ivf, we sadly found out that i have early stages of breast cancer. and it's been a shock. >> she's only 36 years old. her doctor suggested she have a mammogram, and that's when they found this. i mean, so what do you make of stories like that? it's not to say the advice we give or anybody gives is wrong, but what about that? what do we take away? >> the good thing for her is that she did have the mammogram and she has early diagnosed breast cancer, so she should do pretty well, i hope. the challenge we have, though, is that we know that women under the age of 40 have what we call more dense breasts. so we do standard mammogram, we have a higher chance of having a false positive. so we have to weigh that risk versus benefit. false positive means that i think i see something, i'm going to do an additional test that actually may cause you harm. so that's why we do mammograms starting at age 40, doing them every two years. af