I understand the actual knob on a breast for a feeding purpose . Wouldn’t just that be enough ? Why the areola around it especially with a different shade of colour to the rest of the breast ?
In: Biology
Idk details but my understanding is parts of the intestinal tract have a lot of melanin on some people, and it’s not acquired as it can be for spots that chafe. And it’s got something to do with the immune system somehow. And this is still controversial/being researched
I can imagine mother and baby both benefit from improved immune function. Also would explain why I’ve seen areolae darken during pregnancy/lactation
What I don’t get is why palms of hands and soles of feet aren’t the darkest parts of our body, if this is the case
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