So, I understand that freckles appear in connection with exposure to sunlight. Personally, I have them mostly/most densely on my arms. I walk with my back toward the sun just as often as I walk facing it — how come the undersides of my arms aren’t freckled?
In: Biology
Undersides of my arms have freckles so I am not sure why yours don’t. Maybe in some more time they will appear. In short, they haven’t appeared on YOU yet, but they exist in other bodies.
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