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Breast development , also known as mammogenesis , is a complex biological process in primates that takes place throughout a female's life. It occurs across several phases, including prenatal development , puberty , and pregnancy. At menopause , breast development ceases and the breasts atrophy. Breast development results in prominent and developed structures on the chest known as breasts in primates, which serve primarily as mammary glands. The process is mediated by an assortment of hormones and growth factors , the most important of which include estrogen , progesterone , prolactin , and growth hormone.
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How breasts develop during puberty

Thinking back to my wedding day in , a few memories stand out: Dancing all night long to a piece band, swaying to My Girl with my teary-eyed father, and spending half the night yanking my strapless white lace dress up, as it struggled to contain my DDs. I developed relatively late in life. As a competitive gymnast, my after-school time was spent mastering complicated tumbling passes and back tucks on the balance beam. In the seventh grade, I switched from tumbling to cheerleading, a cutthroat sport of its own in Kentucky, where we lived, complete with weight lifting in middle school.

How breasts develop during puberty

What age do breasts fully develop? How do breast start to develop? Are my breasts normal? Can I change the way my breasts develop?
Sixteen observers palpated silicone models of human breasts containing lumps 1. Detectability depended on the size of the lump, producing a systematic psychometric function. In eight observers who participated in three or more sessions, performance improved with practice, with most improvement occurring within one or two trial sessions. There was no difference in performance between four observers who used their preferred hands and four observers who used their nonpreferred hands. These data establish that examination of breast models for the detection of lumps simulating cancer is a task amenable to experimental analysis.
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