Smoking accounts for at least 30% of all cancer deaths in the United States. Smoking causes 87% of lung cancer deaths. Smoking also causes laryngeal cancer, oral cancer, pharyngeal cancer, esophageal cancer and bladder cancer. It is also related to the development of pancreatic cancer, cervical cancer, renal cancer, gastric cancer and some types of leukemia. Cigars, pipes, saliva and other types of smokeless tobacco can also cause cancer. There is no safe way to use tobacco.
Smoking increases the risk of heart disease, which is the leading cause of death in the United States. Smoking, hypertension, high cholesterol, lack of exercise, obesity and diabetes are all risk factors for heart disease, but smoking is the biggest risk factor for sudden cardiac death.
Smokers with heart disease are more likely to die within one hour after a heart attack than non-smokers. Cigarette smoke can harm the heart at very low concentrations, even if the concentration is not low enough to cause lung disease.
About half of all people who continue to smoke will die from it. In the United States, tobacco causes nearly one-fifth 1 deaths and kills about 438,000 Americans every year. Smoking is the single most preventable cause of death in our society.
According to the current model, smoking will cause about 650 million deaths in the world today. If these patterns continue, it is predicted that by the 2 1 1930s, the number of deaths caused by tobacco in the world will increase from about 5 million today to about100000 per year. Most deaths will occur in developing countries.