Cancer has become the most important cause of death in many countries. Cancer is the uncontrolled growth of abnormal cells in the body. Cancerous cells are also called malignant cells. Human papilloma virus were shown to be associated with elevated risks of stomach, liver and cervical cancer, respectively. Tobacco smoking was shown to be extensively allied with higher lung cancer risk and reasonably augmented all cancer risk. Unnecessary alcohol drinking appears to augment the risk of colorectal cancer. Betel nut chewing was allied with privileged risk of oral and esophageal Cancer. Nowadays Breast cancer is also the leading cause of cancer death among females. Cancer prevention requires smoking cessation, increased ingestion of fruits and vegetables, moderate use of alcohol, caloric restriction, exercise, averting of direct exposure to sunlight, arsenic, radon, asbestos, minimal meat consumption, use of whole grains, use of vaccinations and regular check-up. We review the causes, different forms and the effect of herbal extracts for cancer.
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