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Hello my name is Sarah and I am writing a blog which is about the geography of freckles..

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THE TYPES OF FRECKLES There are two types of freckles. They are called, ephelides and the other lentignes. The crucial difference between them is that, ephelides are your normal freckle they appear around Summer time and once Winter comes round they fade. They are usually around the same size of the head of a nail. Where as, lentignes are bigger and much darker and they also don't fade in Winter. Lentignes arise when the skin is also exposed to the sun, they also have more irregular sides to them. They increase in number as you get older. https://commons.wikimedia.org/wiki/File:Smiling_model_with_freckles.jpg Malignant melanoma is skin cancer, it is of a result of skin being over exposed to sunlight and the UV rays have damaged skin cells and therefore cancer forms, a sign of skin cancer is an odd looking, dark spot on the skin with irregular sides. It is so crucial to be able to tell the difference between a malignant melanoma and your normal freckles. If the freckle i...
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WHERE DO FRECKLES COME FROM EXACTLY Freckles are passed down from parents. If your parents have freckles then you have a high chance of getting them during Summer. The gene, MC1R and the environment controls the size, colour and the pattern. The sun is capable of changing the freckles. The gene MC1R is associated with causing red hair and freckles. The MC1R lies around the melanocytes on the skin and helps set a balance of pigments in the skin. If one parent has freckles and the other doesn't then you may have a less chance of such prominent freckles compared to someone who's parents both have freckles. 80% of redheads have MC1R. From my research there seems to be some sort of debate about who brought the red hair and freckles to Ireland, the Celts or the Viking? Professor Donna Heddie says that the Vikings were mostly red instead of blond, in terms of hair colour.  She mentioned that if you look where red heads came from it's almost mapped to the Vik...
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