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The word '''breast''' can refer to the upper anterior part of the human chest that, in men and women, includes the [[mammary glands]], or to either of these glands individually.

The word '''breast''' can refer to the upper anterior part of the human chest that, in women and men, includes the [[mammary glands]], or to either of these glands individually.

Histologically and developmentally, mammary glands are modified sweat glands.

Histologically and developmentally, mammary glands are modified sweat glands. In medical and zoological parlance, both female and male humans have breasts, but those in women develop and enlarge in size at puberty while those of men remain rudimentary.

== Breastfeeding ==

== Breastfeeding ==