Telomeres are DNA fragments whose length is very long at birth and then becomes shorter and is regarded as a sign of aging. After analyzing data over the years, the researchers found that the average telomere length of women who had at least one child was 4.2% shorter than that of infertile women. This percentage is equivalent to 11 years of cell aging, outpacing the effects of smoking and obesity on cell aging. As a result, it has been suggested that having children will speed up the aging of women.
Giving birth is good for women's health and can reduce the risk of many diseases. Breastfeeding for one year can reduce women's risk of breast cancer by 30% cannot refute the above point of view.