The Sun's Effects Of Skin Cancer

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There are those who live for the sun and can spend hours out soaking up the feeling of warmth. Then there are those who prefer to stay inside and escape from the powerful UV rays that come in contact with their body. Both types of people are at fault in the way in which they are using the sun. Those who spend too much time outside may develop skin cancer. Skin cancer is the most common cancer; about 3.5 million cases of basal and squamous cell skin cancer are diagnosed each year. Another 73,000 cases are caused by melanoma, a more dangerous but less common type of skin cancer. Basal cell, squamous cell and melanoma cancers tend to be found on parts of the body over exposed to the sun (“Sun and UV Exposure”). Our body’s main source of vitamin …show more content…
First of all, there are actually three different types of UV radiation and they are classified based on wavelength. The shorter the wavelength, the more harmful the UV radiation; however, shorter wavelength UV radiation is less penetrable to the skin. UVC, has the shortest wavelength and can cause the most damage but, luckily, it is absorbed by the atmosphere. UVB, which has medium-wavelength, can also cause a lot of damage but cannot penetrate beyond the superficial skin layers. UVB is responsible for delayed tanning and burning, as well as augmenting the ageing of skin and rapidly increasing the development of skin cancer. The relatively long-wavelength UVA can penetrate into the deeper layers of the skin and is responsible for the immediate tan one may get. Like UVB, UVA can cause skin ageing/wrinkling and can lead to the buildup of skin cancers (UV …show more content…
There are three main forms of skin cancer: melanoma, basal cell carcinoma, and squamous cell carcinoma (Mead). Melanoma is the most dangerous skin cancer and is caused when unrepaired DNA damage to skin cells caused from UV radiation activates mutations that leads to skin cells to multiplying rapidly and forming malignant tumors. Every year, in the US, an estimated 10, 130 people die from melanoma (“What Is Melanoma?”). Basal cell carcinoma (BCC), the most frequently occurring type of skin cancer, is an abnormal, uncontrolled growth that appears in the skin’s basal cells, which are the deepest layer of the epidermis. This type of cancer also is caused by too much sun exposure and in 2010, an estimated 2.8 million cases of BCC were diagnosed in the U.S., and the number of cases has continued to climb. In fact, more than one-third of all new cancers are skin cancers, with the majority being basal cell carcinoma ("The Most Frequently Occurring Form of Skin

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