10 Subtle Ways Your Breasts Change As You Age. Besides growing larger because of hormones and all that milk, pregnancy can also alter the color of your areola (it darkens) and enlarge your nipples. However, some nipple or breast changes could be a sign of breast cancer.
One of the main causes of aging changes in the breasts is a natural decline of the female reproductive hormone estrogen. This reduced amount of estrogen causes the skin and connective tissue of the breast to become less hydrated, making it less elastic. Dense breast tissue is.
Just like there's a lot women don't know about how their vaginas change with age , so much happens to your boobs as you get older.