At least one third of cancer cases have been prevented. Long-term strategic prevention is arguably the most cost-effective way to control cancer.
Tobacco use, which causes cancer deaths worldwide, is the biggest risk factor for preventable cancer deaths, which accounts for an estimated 22% of cancer deaths annually. In 2004, tobacco use accounted for 1.6 million of the 7.4 million cancer deaths.
Tobacco smoking causes multiple types of cancer, including lung cancer, esophagus, throat, mouth, pharynx, kidney, bladder, pancreas, stomach, and cervix. About 70% of the burden of lung cancer can be attributed to smoking alone.
Indirect tobacco smoke, known as secondhand smoke or smoke from the tobacco smoke environment, has also been shown to cause lung cancer in non-smokers. Smokeless tobacco use (also called oral tobacco, chewing tobacco, or snuff) causes cancer of the mouth, esophagus, and pancreas.
Physical inactivity, nutritional factors, obesity, and weight gain
Diet modification is another important way to fight cancer, given the relationship between weight gain, obesity, and various types of cancer, such as the esophagus, colon, rectum, breast, endometrium, and kidney. Foods rich in fruits and vegetables may have protective effects against multiple types of cancer. Conversely, there may be a relationship between excessive consumption of red meat and preserved risk of colorectal cancer. In addition, healthy eating habits that prevent the development of diet-related cancers can also reduce the risk of cardiovascular disease.
Regular physical activity, maintaining a healthy weight, and a balanced diet can also significantly reduce the risk of cancer. National policies and programs must be implemented to raise awareness and reduce vulnerability to cancer risk factors and to ensure that people are provided with the information and support they need to adopt healthy lifestyles.
Alcohol is a risk factor in many cancers, including oral cancer, pharynx, larynx, esophagus, liver, colon, and breast. The risk of cancer increases with the amount of alcohol consumed. The risk of excessive drinking increases the likelihood of several types of cancer, such as: (mouth, throat, throat, esophagus), a person who is greedy to smoke.
The incidence of known fractures varies between men and women due to certain types of cancer associated with alcohol use, mainly due to differences in average consumption levels. For example, 22% of oral and pharyngeal cancers in men can be attributed to alcohol, while in women the burden is reduced to 9%. There is a similar gender variability in esophageal and liver cancers (Rehm et al., 2004).
Infectious factors account for approximately 22% of cancer deaths in developing countries and 6% in industrialized countries. Hepatitis B and C cause liver cancer; human papillomavirus infection causes cervical cancer; the Helicobacter pylori germ increases the risk of stomach cancer. In some countries, schistosomiasis infection increases the risk of bladder cancer, and in others, hepatotoxicity increases the risk of bile duct cancer. Preventive measures include vaccination and prevention of infection and infection.
Environmental contamination of air and water and soil contamination of carcinogenic chemicals causes 1-4% of all cancers (according to the International Agency for Research on Cancer / World Health Organization, 2003). Exposure to carcinogens in the environment can occur through drinking water, indoor air pollution and ambient air.
In Bangladesh, exposure to arsenic is the source of 5-10% of total cancer deaths (Smith, Lingas & Rahman, 2000) in an arsenic-contaminated area. Exposure to carcinogens also occurs from food contamination with chemicals, such as aflatoxin or dioxin. Indoor air pollution from coal smoke also increases the risk of lung cancer, particularly among non-smokers (Smith, Mehta & Feuz, 2004). Globally, indoor air pollution from domestic coal smoke accounts for about 1.5% of all deaths from lung cancer; the use of coal in domestic households is widespread, particularly in Asia.
There are more than 40 ingredients, combinations and conditions exposed in the work environment, which are carcinogenic to humans and are classified as occupational carcinogens (Siemiatycki et al., 2004). A causal relationship between occupational carcinogens, lung cancers, bladder, larynx, skin, blood, and pharynx-nasal has been shown to be well documented. The cause of mesothelioma (carcinoma of the outer lining of the lung or chest cavity), due largely to occupational exposure to asbestos [rock silk].
Occupational cancers are concentrated among certain groups of people who are able to work, who have a higher risk of developing a form of cancer than the general population. About 20% -30% of males and 5% -20% of working-age females (between the ages of 64 and 15) may have lung cancer during their careers, accounting for about 10% of global lung cancer cases. It has also been shown that about 2% of leukemia cases worldwide are attributable to occupational exposure.
Ionizing radiation is carcinogenic to humans. Knowledge about radiation hazards has gained