Many of us do not know much about our [email protected] Sadly, we are exposed to so much information about them that may even cause us to be a little nervous about them. We are encouraged to be constantly checking them to make sure that there aren’t any lumps that could eventually lead to cancer.
The other conversation that centers on the ta-tas is whether or not they are s*xual or functional. Many argue that they are more functional than s*xual and fight for the right to be able to feed their babies without being banished to some unsanitary bathroom. Others argue that because they are also s*xual, exposing them, even partially, is highly inappropriate.
Below are some facts about the ta-tas that you may not know:
Human [email protected] are different from all the other [email protected] on the planet.
Humans are the only mammals to have [email protected] that develop in puberty and then remain permanently enlarged, says Florence Williams, the author of [email protected]: A Natural and Unnatural History. Other female primates have them when necessary (i.e., their mammary glands grow during lactation and deflate after weaning). Ours, fleshy and fatty, “stick around regardless of our reproductive status,” she says.
Compared to our other organs, they’re late bloomers.
Williams was fascinated to learn that our [email protected] are the last organ in our bodies to develop. Unlike, say, the brain or liver, whose architecture is set at birth, [email protected] don’t really come into their own until well after birth. “The [email protected] has to fully build itself out of nothing during puberty,” she says. “Even if a woman never gets pregnant, her [email protected] pack and unpack a little bit each month, just in case.” Over the course of a menstrual cycle, breast volume varies by 13.6 percent, owing to water retention and cell growth. (The average breast weighs just over a pound, but this can double in late pregnancy.)
They’re different from each other.
If you were secretly dismayed to discover that you don’t fill out both sides of your bikini top in exactly the same way, take heart: Williams found that one breast is usually, on average, 39.7 milliliters bigger than the other (that’s nearly a fifth of a cup). This makes sense, she says — we don’t expect to have two feet, two ears or two knees that are exactly the same.