RecruitingClinical trialA Study of Changes in Thinking Related to Aging and Cancer in Breast Cancer Survivors (TRAC)The purpose of this study is to look at how differences in cognitive (mental) function develop over time in breast cancer survivors compared to volunteers without a history of cancer (healthy volunteers). Both cancer survivors and healthy volunteers (who are the same age as the cancer survivors) will participate in this study so the researchers can compare the results of neurocognitive testing (which looks at memory, attention, and information processing) on each group of participants.