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The Nature of Freckles

July 14th, 2009 · No Comments

In spring and summer when the sun shines most of the day a large number of people have freckles. They are caused by the sunshine. It stirs a brownish pigment which normally lies in the deep layers of the skin and the pigment comes to the surface where it can be seen.

The skin is not just a thin jacket to cover the body. It is a complex organ with many functions. It has oil glands and sweat glandsand very small roots from which hairs grow. It has blood vessels and nerves. Its thickness may be from one-sixth to one-fiftieth of an inch.

The outer layer of the skin, called the epidermis, is a thin tissue of cells constantly coming off. The cells grow in the lower layer called the dermis. In the dermis there is a brown pigment.

The sunshine brings a spot of the pigment from the dermis to the epidermis where it can be seen as a freckle. Freckles disappear when old cells of the epidermis come off, and new cells which have grown in the dermis take their place.

Tags: Skin Care

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