라벨이 cause of cancer인 게시물 표시

The reason for the increased number of cancer patients these days

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The reason for the increased number of cancer patients these days Science and technology have developed a lot and will develop much more in the future. I wonder why cancer has been more abundant now than it used to be. Until the 1960s, there were not many cancer patients. In less developed countries, there are not many people who have cancer, and cancer is very rare. However, as the country develops, the number of cancer patients increases. If the country lives well and science and technology are developed, the cancer mortality rate will be lower. No matter how well the country survives, doctors do not seem to be capable of curing cancer. Do you know why cancer patients are growing these days? Have you thought? Do not you wonder why people are getting cancer? Time has passed and the age has changed, and the rate of cancer patients has increased  A few decades ago, when one in 20 people in the whole country were found to have cancer, it took a little more time, one in ten,

What is cancer?

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What is cancer? Some cells in the body do not stop dividing, spread to surrounding tissues and invading, the cancer appears. Cancer can start in almost every part of the human body, made up of tens of trillion cells. In general, human cells grow and divide to fill new parts of the body with new cells. Old cells, damaged cells are killed, and new cells replace cells that were previously in place. As the cells move away from normal But when cancer begins, this systematic order breaks down. As the cells become more and more normal, they become scarred or old cells die and new cells form. If the cell does not stop dividing, it will become a tumor. Many cancers are made of massive solid tumors. Blood cancers such as leukemia are not solid tumors. Tumors can be divided into malignant tumors and benign tumors. Malignant tumors spread to nearby tissues or penetrate surrounding tissues. And as this malignant tumor grows, the cancer cells can separate and migrate to the blood or lympha