It takes a long time to build a cancer of a human body. Maybe it's a few years or even decades. As the age progresses, the risk of developing cancer is increasing.
Studies have shown that a 70-year-old man in the United States is more likely to die of carcinoma than 1000 years of age as a 10 year old child. Likewise, lung cancer is also home to a person's body for a very long time. Basically, lung cancer can take up to three decades or more to nurse the body.
Smoking was not at all popular in the United States until the second world war. During World War II, a major portion of US military personnel became accustomed to smoking.
This is because during the Second World War the members of the armed forces received cigarettes as part of their race. Nearly thirty years later, in the mid-1970s, the number of people with lung cancer increased at an alarming rate. At the same time, smoking began to spread everywhere in the world, and its widest range grew in the nineties. In this, scientists believe that the global rate of death of lung cancer will reach the highest level next 2020.
Scientists published in science magazine Robert N. A clear idea about this can be found in the following graph from the Proctor's research paper.
In the context of Bangladesh, the death rate may not be too much due to lung cancer. But with very force, it can be said that this rate will soon increase in the hazardous rate. So the smokers who often put the question, "Do you see someone die from cancer due to smoking?", They may soon be getting the answer to their question.