Sun Exposure In Australia
Sun plays the most significant role in the evolution of every thing incredibly present on the
Planet Earth.Sun is not only the just the source of light, but it also very well known as source of extensive UV Rays (Ultra Violet) , Vitamin D , and the only thing through which photosynthesis in plants is possible. However due to numbers of benefits, it 's worst side can 't be forgotten.
Now days most of the part the world especially Australia is reviving the cases for the patients of
Skin Caner , Sun Burn and Tanning which is causes by the Sun. So from last the few years this is the one of the critical question that Should people avoid the sun to prevent skin cancer or seek sun exposure in order to have sufficient Vitamin D? To find out …show more content…
However, there is currently no standard measurement of what the optimal level of vitamin D is, and vitamin D levels may vary between individuals.
Few researchers suggest that 70-80nmol is best, but others suggest that vitamin D levels may plateau at this level and not get any higher regardless of how much sunlight or supplements are taken. "The report cites a Hawaiian study, which found that “half of healthy young surfers had levels below 75nmol/L despite extensive unprotected outdoor exposure and tanned skin. Vitamin
D can also be obtained through the diet, particularly through oily fish. However, estimates suggest that 90% of the vitamin D requirement comes from sunlight" ( Nair-Shalliker et al ,
2013 ).
Although Sun light has great source of health benefits , but its drawback is widely known through out the world , from which Skin cancer , Sun burn and tanning are the most common problems faced by the people ( Hoffmann & Meffert , 2005 ; Brøndum-Jacobsen, Nordestgaard ,
Nielsen & Benn , 2013). Ultraviolet (UV) rays are an invisible form of radiation so it can pass through the skin and damages the skin cells. Sunburns and tanning are the signs of skin …show more content…
"The estimated
incidence of non-melanoma skin cancer in the USA is more than 1 000 000 cases per year, of which roughly 20–30% are of squamous-cell carcinoma" (Madan , Lear & Szeimies ,2010).
It is the fact that UV rays are the only thing which damage DNA directly (Madan , Lear &
Szeimies ,2010). According to Madan et al,(2010) Ultra violet B directly damages the RNA and
DNA by forming the covalent bond in between the adjacent pyrimidines which triggers the generation of mutagenic photoproducts such as cyclopyrimidine dimers (TT) and pyrimidinepyrimidine (6-4) adducts. It has been reported that in patients with a rare cell-mediated immunity disorder, epidermodysplasia verruciformis, of high rates of malignant transformation of atypical infection is observed with β human papillomaviruses (HPV) provides the clues about the association between HPV and non-melanoma skin cance. Further evidence estimates that up to 50% in immunocompetent individuals contain DNA from cutaneous or β HPV types and to 90% of non-melanoma skin cancers in immuno compromised individuals. However, no specific
Planet Earth.Sun is not only the just the source of light, but it also very well known as source of extensive UV Rays (Ultra Violet) , Vitamin D , and the only thing through which photosynthesis in plants is possible. However due to numbers of benefits, it 's worst side can 't be forgotten.
Now days most of the part the world especially Australia is reviving the cases for the patients of
Skin Caner , Sun Burn and Tanning which is causes by the Sun. So from last the few years this is the one of the critical question that Should people avoid the sun to prevent skin cancer or seek sun exposure in order to have sufficient Vitamin D? To find out …show more content…
However, there is currently no standard measurement of what the optimal level of vitamin D is, and vitamin D levels may vary between individuals.
Few researchers suggest that 70-80nmol is best, but others suggest that vitamin D levels may plateau at this level and not get any higher regardless of how much sunlight or supplements are taken. "The report cites a Hawaiian study, which found that “half of healthy young surfers had levels below 75nmol/L despite extensive unprotected outdoor exposure and tanned skin. Vitamin
D can also be obtained through the diet, particularly through oily fish. However, estimates suggest that 90% of the vitamin D requirement comes from sunlight" ( Nair-Shalliker et al ,
2013 ).
Although Sun light has great source of health benefits , but its drawback is widely known through out the world , from which Skin cancer , Sun burn and tanning are the most common problems faced by the people ( Hoffmann & Meffert , 2005 ; Brøndum-Jacobsen, Nordestgaard ,
Nielsen & Benn , 2013). Ultraviolet (UV) rays are an invisible form of radiation so it can pass through the skin and damages the skin cells. Sunburns and tanning are the signs of skin …show more content…
"The estimated
incidence of non-melanoma skin cancer in the USA is more than 1 000 000 cases per year, of which roughly 20–30% are of squamous-cell carcinoma" (Madan , Lear & Szeimies ,2010).
It is the fact that UV rays are the only thing which damage DNA directly (Madan , Lear &
Szeimies ,2010). According to Madan et al,(2010) Ultra violet B directly damages the RNA and
DNA by forming the covalent bond in between the adjacent pyrimidines which triggers the generation of mutagenic photoproducts such as cyclopyrimidine dimers (TT) and pyrimidinepyrimidine (6-4) adducts. It has been reported that in patients with a rare cell-mediated immunity disorder, epidermodysplasia verruciformis, of high rates of malignant transformation of atypical infection is observed with β human papillomaviruses (HPV) provides the clues about the association between HPV and non-melanoma skin cance. Further evidence estimates that up to 50% in immunocompetent individuals contain DNA from cutaneous or β HPV types and to 90% of non-melanoma skin cancers in immuno compromised individuals. However, no specific