Smoking and cancer have a huge link between them. Smoking has a huge impact on the onset of cancer. Research has shown that smoking increases the chance of getting cancer. Every time you smoke you increase your chance of having cancer later in life. People believe that smoking is bad for them because they feel good, but what they don't know is that tobacco has a huge impact on cancer risk. Smoking can cause cancer due to the huge range of dangerous chemicals it contains. Tobacco contains up to 70 cancer-causing chemicals. Some chemicals present in tobacco that constitute risk factors are tar, which contains numerous dangerous chemicals. When tar enters the body it becomes very sticky and can color or stain the liver. Smoking is known to cause lung cancer in humans. If people had stopped smoking, about 90% of people with lung cancer could have avoided getting it. Smoking can also cause cancer because it contains very harmful chemicals such as arsenic and benzene. Benzene has been discovered...