Lack of sunlight can increase the risk of lung cancer. Therefore the study researchers have found that the highest tuberculosis case of cancer experienced by countries that are far from the point ekuator, where sun exposure is lowest.
During this exposure the sun is known as a source of vitamin D that is capable of stopping tumor growth, but on the other side also have side effects kill cells in the body. Studies conducted by researchers at the University of California, San Diego in the publication in the scientific journal Epidemiology and Community Health. Experts remind that the sun exposure over the main problem is still a cause of skin cancer, a disease that is now growing in the world.
Indeed, cancer tuberculosis has killed more than one million people per year worldwide. The researchers analyzed data from 11 countries from several continents. They found that smoking-related cancer is tuberculosis, which is 85 percent of cases. With sun exposure, particularly UVB rays, the source of vitamin D for the main body also has a visible impact.
“We know that vitamin D is a principal for the health. But the time to get vitamin D should be much lower than for the brown color on the skin or even to be burned,” said Cancer Research UK, Kat Arney.
UVB rays count increased along with the proximity of a region with a point ekuator. From the results of the analysis show that the number of cancer cases of tuberculosis is highest in countries that are far from the point ekuator, and lowest in the region close to the point ekuator.
High closing level clouds and aerosols are also associated with the high number cases of this disease. Chairman of the Research Team says Cedric Garland, cancer tuberculosis usually attacks the same with various other forms of the disease. Usually begins with cell epithelial, to pave organs cells. Generated when the cancer cells begin in the divided pattern that is not restrained. He stated that vitamin D stimulated the emergence of chemical substances combining calcium, shaped like a move up the substance in which the binding closely together, and stop the occurrence of excessive cell division.
Already there is evidence that vitamin D indeed slow the growth of cancer cells, but also develop other types of cancer.
Garland also stressed that sun exposure is moderate, will not be significantly affected by the risk of most serious form of skin cancer, melanoma. He says only skin cancer-related habits, sun exposure carcinoma into cells that have killed far fewer tuberculosis rather than cancer. And in the form of the disease, may also be prevented by sun exposure is moderate.
Size of sun exposure is moderate 15 minutes per day, two hours from noon, to be bright in the day. With the season and the temperature like this, then 40 percent of skin area was exposed to the sun.
A hat with the rim width should be reminded when it is in the hot sun more than a few minutes, but the glass must skip over this period, because this prevents the synthesis vitamin D.
Senada Kat Arney assert that smoking still remains the biggest cause of cancer tuberculosis. “now more and more evidence that vitamin D can help reduce the risk of colon cancer a few, but of vitamin D with lung cancer is still too obvious,” he said.
In this case, the researchers have not yet significantly the size of the level of vitamin D should be consumed by the community and may have some other factors that are still to be required that has not been entered in a matter of analysis the researchers.
“This difference in behavior, including protection against the sun in various countries as differences in ways that the cancer cases. We know that vitamin D is a principal for health, but the time in which the sun needed to get vitamin D is enough,” he said.
