Ultraviolet germicidal irradiation

the skin. This DNA damage leads to cellular mutation and causes skin cells to multiply quickly, thus forming tumors and abnormal growths. There are several causes of skin cancer, including sunburn and ultraviolet light exposure throughout life with environmental and hereditary elements. Ultraviolet light, a type of electromagnetic radiation, is invisible to the human eye and comes from the sun. It is the foremost cause of skin cancer, associated with 90 percent of non-melanoma skin cancers and…

What is exfoliation? It is a skin treatment offered in Spas where dead or old facial skin cells are sloughed off. Why? Dead skin cells that accumulate on the face makes the facial skin look old and dull. For those who are past their 40's exfoliation is necessary for that smooth and lovely glow. Older skin definitely needs to "rehydrate" and "rejuvenate". Exfoliation will not only give the skin a younger fresher look but will also encourage the growth of healthier skin. A person grows a new layer…

form of cancer and it accounts for at least half of all cancers .In fact, It is especially common among people with light skin .Also, It occurs when unrepaired DNA damage to skin cells which is the largest organ in our bodies. most often caused by ultraviolet radiation from sunshine and tanning beds triggers mutations, or genetic defects, that lead the skin cells to multiply rapidly and form malignant tumors. Within the past three decades, more people were diagnosed with skin cancer than all…

Background It is well recognised that exposure to solar ultraviolet (UV) radiation is a major cause of skin cancer (World Health Organisation IARC 1992). Worryingly recent studies have shown that UV levels have increased due to the reduction of stratospheric ozone (World Meteorological Organization 2010). The United Nations Environment Programme (UNEP) predicts that in the event of a 10% decrease in stratospheric ozone an additional 304,500 cases of skin cancer will occur globally each year…

Annotated bibliography Question: Why have humans evolved to have different skin colors? Rationale: As time progressed humans became more and more intelligent. As their brain sizes grew, they were able to manipulate new habitats and they were able to live in different regions. At the beginning, we were suited for a particular habitat, but we became increasingly more intelligent and we were able to occupy different habitats. We were originally suited for areas of high sunlight very close to the…

Albinism is a skin disease that’s caused by little to no production of melanin. This disorder can affect vison, skin, hair and the person’s ability to tan. Certain genes in our body are responsible for making proteins that are involved in making melanin, which is produced by cells called melanocytes. Albinism is caused when a mutation occurs in one of these genes. It’s also caused by recessive inheritance. This means that a person has to inherit two copies of one mutated gene- one from each…

may encounter from the sun. That is why caucasians are more immune to skin cancer because they do not produce enough melanin as someone with darker skin does. Most people believe that people with dark skin cannot get skin cancer which is false. Ultraviolet radiation is how one can get skin cancer. If an individual is exposed to the sun for long periods of time, he or she has a good chance of getting skin cancer, regardless of their skin color.…

This is where the scum of the earth goes to die. Under the buzzing glow of electric street lamps, Scarlet women glide like snakes, ready to pounce on any unsuspecting mouse that finds he has wandered onto the wrong street. Locals have taken to calling it “two-bit” street, cheap and dirty. The only people who don’t mind being seen on two-bit are the types who can be bought of by some sweet words and free liquor; just the type I love to pump for information. The summer night is sweltering, with…

The skin is largest organ in the human body, it covers every square inch of our bodies, for its function is to protect us from outside pathogens, but sometimes these pathogens can hurt our skin. Vitiligo is a skin disease that affects all people of all skin types, there is no specific gender or race that gets affected. Vitiligo is actually a common disease where it affects 1-2% of the world population. Vitiligo is a skin disease that results in the loss of skin color in blotches on the body.…

Malignant melanoma is a form of skin cancer that forms in melanocyte cells in the basal layer of the epidermis which produce melanin that gives human their skin, hair, and eye color. Malignant melanoma grows malignant tumors due to DNA damage to the skin cells probable to UV radiation that causes mutations and sets off skin cells to multiply rapidly and form these malignant tumors. Melanomas are closely similar to moles making it difficult for a person to distinguish from a normal mole to a…