ABSTRACT
Cancer is a complex disorder, characterized by the uncontrolled growth and spread of abnormal cells. The prevalence of cancer is increasing rapidly and it has been predicted that the prevalence will increase further in the coming years. At present, around the world, more than 10 million cancer cases occur annually. Cancer is a leading cause of death around the world, causing more than 6 million deaths a year. The exact causes of most types of cancer are still not known, and there is not yet a cure for cancer. It is known that the risk of developing many types of cancer can be reduced by adopting certain lifestyle changes, such as quitting smoking and eating a nutritional balanced diet.
