Cancer : A Global Epidemic Essay

1323 Words 6 Pages
Cancer development
Cancer is a global epidemic. It affects the elder and the younger, the ugly and the beautiful, and the poor and the rich. According to the World Health Organization, there are 8.2 million cancer-related deaths in 2012. Cancer accounts for more deaths worldwide than other infectious diseases, including HIV/AIDS, tuberculosis and malaria. It is also estimated that 21.4 million new cancer cases will be diagnosed in 2030. Cancer comes to be a global issue and an increasing public health problem in developed, developing and undeveloped countries.
Cancer is such a common disease that, to no one’s surprise, many families have at least a few members who have cancer. Sometimes, it seems like some particular types of cancer occur in some families. Sometimes, this is because these family members have some common habits or expose to the certain risk factors, such as smoking, which can cause many types of cancer. Other factors, like obesity and diet, can also be the reasons that cause certain cancers in families. Yet in some cases heredity is the main reason for cancer development because of an abnormal gene passing along from generation to generation. This is usually called inherited cancer, which is due to the inherited abnormal gene that can lead to cancer, not inherited cancer itself. Based on epidemiological studies, 5% to 10% of cancers resulting from gene mutations are inherited from parents. These are the reasons why some cancers occur to a certain group of…

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