Many “leftover women” have been delaying their marriage and childbirth, and many of them have long exceeded the national age limit for late marriage and childbirth, but still have not planned their life events. Late marriage, late childbirth and late breastfeeding are the three risk factors that lead to high incidence of breast cancer. Many “leftover women” have delayed their marriage and childbirth, and many of them have exceeded the national age limit for late marriage and childbirth, but are still late in planning for their life events. Every October is the Pink Ribbon Month for breast care. Breast experts remind us that breast cancer is the most prevalent cancer among women and is second only to lung cancer in the list of cancer deaths. Only a breast that is caressed and nursed regularly is healthier and can significantly reduce the risk of cancer. ”A study found that women who had their first child and breastfed before age 30 had a much lower risk of breast cancer than those who had children after age 30, and women who breastfed for seven consecutive years had a 50 percent lower risk. The reason for this is related to the increased production of progesterone that counteracts estrogen after a woman becomes pregnant and the lower levels of estrogen in breastfeeding women – there is research evidence that estrogen can stimulate breast hyperplasia and that high levels can easily induce breast cancer. It’s fine for leftover women to enjoy the joy of being single, but if they are forced to be single for various reasons and are then hit by negative events such as loss of love, the risk of breast cancer can be further magnified by psychological factors. On the other hand, breast is a sexual organ, getting proper massage can not only unblock the blood flow, but also regulate the mood and enhance immunity, which greatly reduces the chance of cancer.