Cancer is the second leading cause of death in the world. But survival rate are improving for many type of cancer, thanks to improvement in cancer screening and advanced treatment.
Cancer is caused by changes of DNA within cells. The DNA inside the cells are packed into a number of individual genes which instruct the cells to perform their task. But at times, errors in the instruction can cause cells to stop functioning normally and become cancerous.
There is no certain way to prevent cancer but one can reduce the risk of cancer through awareness and immunization.
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