CANCER - A TUMOUR CAUSING DISEASE
Introduction The history of CANCER dates back to era of Hippocrates (460-370 BC).The disease was first called ‘CANCER’ by Hippocrates, who is considered as the father of medicine. Cancer is a disease in which formation of tumours take place. The tumours are formed by certain agents known as Carcinogenic agents. These tumours formed are of two types Benign or Malignant tumours. In 2019 about 18 million new cases occurred annually of cancer and caused about 8.8 million of deaths. What causes CANCER? Carcinogenic agents present in carcinogenic substances cause cancer. The carcinogens are classified into 3 main groups: CHEMICAL, PHYSICAL & ONCOGENIC VIRUSES. Tobacco used in any forms is the cause about 22% of cancer deaths. Another 10% is by obesity, poor health or excessive drinking of alcohol. Remaining percentage of cancer is caused by ionizing radiations or environmental pollutants. Also 5-10% of cancer is inherited genetically from their parents. Cancer cannot be prevented by...