Tobacco smoke is a mixture of thousands of chemicals and many of them are poisonous and causes major damage to the tissues of the body. Each cigarette delivers these chemicals quickly from the lungs into the blood and the arteries carry these chemicals to tissues in all parts of the body. When these chemicals are absorbed into the bloodstream and are carried to other organs of the body, they interfere with the functioning of the lungs and other parts of the body. A poison that is present in some of these chemicals disrupts the way the human body heals itself and with every single cigarette smoke attacks the body in its own way. Once the smoking has damaged the cells of the parts of the body, they grow uncontrollably and develops cancer. The cigarette smoking can also damage the DNA, cell’s instruction manual, which leads to cancer.
1. Lung Cancer
Lung cancer is one of the most diagnosed cancer worldwide. It is a malignant tumor that grows in an uncontrolled way in the lungs. Lung cancer is generally divided into two main types- small cell lung cancer and non-small cell lung cancer. Small cell lung cancer grows more quickly as compared to non-small cell lung cancer and is more likely to spread outside the lungs. Non-small cell lung cancer include different types of cancer, squamous cell carcinoma, large cell carcinoma and adenocarcinoma. There are various factors that could lead to the development of the lung cancer but cigarette smoking is considered to the largest single leading cause of lung cancer and it is responsible for almost 90% of the diagnosed cases. The risk of developing lung cancer is strongly related to the age a person starts smoking, how long they smoke and how many cigarettes they smoke every day. The chances of developing lung cancer increase with the total amount of smoke and the number of years an individual has smoked. The symptoms of lung cancer may vary from person to person and some of the symptoms that should not be ignored are a cough that gets worse, breathing problems, coughing with blood and chest pain.

