It's well-publicized that early breast feeding is helpful.
Breast cancer results from a complex interaction of genetic and environmental factors.
While we do not know all the details of its origin, we can make specific recommendations for lifestyle changes that will reduce risk. Some of these are intended to reduce estrogen production in the body or limit exposure to foreign estrogens. Those hormones stimulate breast cells to grow and divide, increasing the chance of malignant transformation. Others are aimed at strengthening the body's defenses in general. Women who start to menstruate at younger ages have higher risks of breast cancer, as do those who reach menopause at later ages.