This document discusses cancer, including types, causes, epidemiology, management, and prevention. It notes that lung, breast, colon, rectal, endometrial, pancreatic, kidney, prostate, thyroid, and leukemia are common cancer types. Environmental factors like tobacco, alcohol, diet, occupation, viruses, parasites, and lifestyle habits contribute to cancer risk. Genetic factors can also play a role. The global cancer burden is expected to increase, with more deaths in developing countries by 2020. Cancer rates vary between developed and developing economies and within India based on etiological factors like smoking, betel nut chewing, and air pollution. Lifestyle changes, physical activity, and healthy diets can help prevent cancer. Recent studies found