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Freckles picture
Freckles are small brownish spots on human skin, predominantly found
on the face. Predisposition to freckles is genetic, though exposure to sunlight is a
factor in how many appear. The gene for freckling is related to the presence of red hair.
Based on recent genetic research, it has been suggested that this gene had Neanderthalic
origins. (The basis of the claim is the age of the gene; this is not in itself proof,
since Homo erectus pre-existed the Neanderthals.)
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Since freckles are almost always harmless, there really is no need to treat
them. As with many skin conditions, it's best to avoid the sun as much as
possible, or use a sunscreen with SPF 15 or higher. This is especially important
because people who freckle easily (for example, lighter-skinned people) are more
likely to develop skin cancer | |
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