Cancer is a group of many diseases caused by out-of-control multiplication and spread of abnormal cells. There are over 100 different types of cancer, and each is classified by the type of cell that is initially affected. Cancer harms the body when damaged cells divide uncontrollably to form lumps or masses of tissue called tumors (except in the case of leukemia where cancer prohibits normal blood function by abnormal cell division in the blood stream). Tumors can grow and interfere with the digestive, nervous, and circulatory systems and they can release hormones that alter body function. Tumors that stay in one spot and demonstrate limited growth are generally considered to be benign. The branch of medicine concerned with the study, diagnosis, treatment, and prevention of cancer is oncology. Cancer affects people at all ages with the risk for most types increasing with age. It caused about 13% of all human deaths in 2007 (7.6 million). Cancers are primarily an environmental disease with 90-95% of cases due to lifestyle and environmental factors and 5-10% due to genetics. Common environmental factors leading to cancer death include: tobacco (25-30%), diet and obesity (30-35%), infections (15-20%), radiation, stress, lack of physical activity, environmental pollutants. These environmental factors cause abnormalities in the genetic material of cells. Some cancers can be caused by infection. This is especially true in animals such as birds but also in humans with viruses responsible for up to 20% of human cancers worldwide. Greater than 30% of cancer is preventable via avoiding risk factors including: tobacco, overweight or obesity , low fruit and vegetable intake, physical inactivity, alcohol, sexually transmitted infection, air pollution. This can be accomplished by avoiding carcinogens or altering their metabolism, pursuing a lifestyle or diet that modifies cancer-causing factors and/or medical intervention. Many movie makers used cancer as their central idea/ subject for their movie. After a long research work I able to get details of at least 28 movies. Following are the details of well known Cancer subject movies with proper reference link. Director - Hrishikesh Mukherjee Year - 1973
Director - Joseph Sargent 5) Ankhiyon Ke Jharokhon Se
Year - 1978 Director – Ralph L. Thomas Director – James L. Brooks
9) Don't Tell Her It's Me Director - Malcolm Mowbray Director – John McTiernan Director: Bruce Joel Rubin Director - Sandeep Sawant Director – Mark Steven Johnson Director – Nick Cassavetes
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