Lung cancer

LUNG CANCER
WHAT IS IT?
The lungs are a pair of organs that give oxygen to the body and expel carbon dioxide, a waste product produced by the body's cells. The bronchi, meanwhile, are tubes throughwhich inspired air reaches from the mouth to the lungs are divided into other smaller and smaller tubes, called bronchioles, to form the alveoli, which is where exchange occurs of venous blood gases.Lung cancer is caused by overgrowth of malignant cells in this organ, and if not diagnosed early can move to other organs of the body.
Most forms of lung cancer in the cells of the lungs, butcancer can also spread (metastasize) to the lung from other parts of the body. Lung cancer is the most common, either in men or women, and most importantly, is the most common cause of cancer deaths inboth men and women.
CAUSES
• Snuff: Is the main cause. Snuff smoke, with its high concentration of carcinogens, goes straight into the air and is inhaled by smokers as nonsmokers. Quitting smoking alsosignificantly reduces the risk of other diseases related to snuff, such as heart disease, emphysema and chronic bronchitis.
• Effects of radon: Radon is a radioactive gas that is found in rocks andsoil of the earth, formed by the natural decay of radium. Being invisible and odorless, the only way to determine if one is exposed to the gas is to measure their levels. In addition, exposure toradon combined with smoking significantly increases the risk of lung cancer. Therefore, for smokers, exposure to radon is an even greater risk.
• Exposure to carcinogens: Asbestos is perhaps the bestknown industrial substance associated with lung cancer, but there are many others: uranium, arsenic, certain petroleum products, etc.
• Genetic predisposition: It is known that cancer can be caused bymutations (changes) of DNA which activate oncogenes or inactivate the tumor suppressor genes. Some people inherit DNA mutations from their parents, which greatly increases the risk of developing...