CANCER.

Cells it is main material from which consist our body. Cancer originates in normal and absolutely healthy cells. Usually, cells born then our body needs them and die then it doesn't, but then you have cancer, your cells divide too fast and not dying. There are many different kinds of cancers, because it can be in every organ of our body such as lung, breast, bones, even skin. The most common cause of cancer-related death is lung cancer. There are many causes of cancers, including: Certain viruses, radiation, sunlight and tobacco. But still, humanity do not know all the reasons of the cancer. Some types of cancers common only in certain parts of world or common for males or females. Thanks "New York Times" for information http://health.nytimes.com/health/guides/disease/cancer/overview.html.

After this article I did some researches and find out that the cancer is killing people more then over sicknesses. And this is, mostly, because it is really hard to detect it. First, it is hard to detect cancer, because it cans be in every organ of our body. Second, we still do not know all symptoms of cancer and sometimes it does not even have symptoms. To defend ourselves I think people should pass some test on detecting cancer depending from their sex and place where they are living. 09/28/2011

Ilya Zaretskiy.