Cancer

What exactly is cancer? About 100 types of cancer affect human beings. Cancer can strike young, middle-aged and old people and it occurs equally among people of both sexes. Cancer can occur anywhere in the body and may spread to other parts. It can occur in most species of animals and many kinds of plants as well.

Cancer firstly begins in the body cells, because all body parts are composed of cells. Each minute, several billion of this cells die and are replaced by new ones. However if this orderly process is disrupted and cells begin to grow out of control they form execs tissue known as a tumor. We know benign tumors, which are not cancer tumors and are not usually life threatening and malignant tumors which are cancer tumors. Benign tumors are not cancer tumors and they are usually not life threatening. Malignant tumors are cancer tumors. With time cancer cells break off and spread through the blood or lymphatic system to form new tumors in other parts of the body. Metastasis is a process where cancer spreads from the original tumor to other parts of the body. Cancer’s ability to spread to other body parts makes the disease extremely difficult to treat unless it is detected early.

DIFFERENT TYPES OF CANCER:

Now I will tell you something about what causes cancer. People develop cancer mainly through repeated or prolonged contact with one or more cancer-causing agents, called carcinogenesis. ……….

CHEMICHALS: Scientist have defined hundreds of chemicals that can cause cancer in animals. These chemicals are also a cancer hazard for human beings if they become widespread in food supply, the general environment, or the living and working environment. In most cases, a chemical carcinogen enters the food supply as a food addi...

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...tter and other dairy products, because diets high in fat may also cause obesity, which can cause cancer. When its summer and sunny outside, you should always wear a sunscreen and avoid being directly on the sun. Even though that it is not necessary to have a cancer if your parents had it, you should know about your family medical history. You should also have safe sex because unsafe sex can result in the infection of the human papillomavirus (HPV), a known cause for cervical cancer and many other types of cancer. Both woman and man should regularly be checking their bodies if there are any changes on it. And if there are any changes you should immediately go to the doctor.

In my presentation I told you what cancer is and how it spreads, than I told you about different types of cancer and how is cancer treated. And finally I told you something how to prevent cancer.