Reaching menarche at an early age is a risk factor in the development of breast cancer.

Question

Quizplus · Accepted Answer

Reaching menarche (the onset of menstruation) at an early age is a risk factor for breast cancer because it exposes women to longer periods of estrogen exposure, which may promote the growth of cancer cells in the breast tissue. Studies have shown that women who start menstruating before the age of 12 are at higher risk of developing breast cancer than those who start after the age of 14. However, early menarche is just one of many risk factors for breast cancer, and not all women who experience it will develop the disease.

Reaching Menarche at an Early Age Is a Risk Factor