Nowadays cancer disease has been a terrified thing in our life. But have you ever known what the causes of cancer? Most doctors and scientists believe there are different causes for the different forms of cancer. Working condition, smoking, viruses or bacteria, and many more are the causes of cancer.
First, working condition, may lead to this disease. For example people who work in close contact with chemical compound like arsenic and asbestos may develop cancer. Asbestos is a family of naturally occurring silica compounds. There are three commonly available types of asbestos; chrysotile (white asbestos), amosite (brown asbestos), and crocidolite (blue asbestos). All three have been associated with cancerous and non-cancerous lung disease.
Next, smoking, is another cause of cancer. Many experiments have shown that smoking can produce lung cancer. Using tobacco products or regularly being around tobacco smoke increases the risk of cancer. According to the National Cancer Institute, smoking causes 30% of all cancer deaths in the U.S. and is responsible for 87% of cases of lung cancer.
The Last, scientific research, has shown that viruses bring about certain kinds of cancer in laboratory animals. Being infected with certain viruses or bacteria may increase the risk of developing cancer: Human papillomaviruses (HPVs): HPV infection is the main cause of cervical cancer. It also may be a risk factor for other types of cancer. Helicobacter pylori: This bacterium can cause stomach ulcers. It also can cause stomach cancer and lymphoma in the stomach lining.
In conclusion, cancer is a dangerous disease that can be threatening our live and causing a death. That is why we have to maintain our health as early as possible. Having a healthy diet, being physically active, and maintaining a healthy weight may help reduce cancer risk.
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