You and your infant may be eligible to participate in this study if you:
Are 18 years of age or older
Have an infant between 0 and 9 months old
Live within 25 miles of Amherst, MA
Have no prior history of invasive breast cancer, mastectomy, breast radiation, or any other cancer except non-melanoma skin cancer
Have a BMI greater than 18.5
Have no health conditions that prevent you from engaging in moderate intensity physical activity