False. According to the National Institutes of Health (NIH), all women are at risk, and although it is rare, men are also at risk, with over 1,900 men being diagnosed with breast cancer annually in the U.S. Breast cancer risk factors include age (risk increases with age), a family history of the disease, an early age of menarche (first menstrual period), a late age of onset of menopause, giving birth to her first full-term baby at a late age, and certain breast conditions. In postmenopausal women, obesity is also a risk factor. However, the overwhelming majority (more than 80%) of women diagnosed with breast cancer have no identifiable risk factors, which is why monthly breast self-exams are so important for everyone.