How do cigarettes affect the body? – Krishna Sudhir

Cigarette smoking causes more than 480,000 deaths each year in the United States. This is nearly one in five deaths.1,2,3
Smoking causes more deaths each year than the following causes combined:4Human immunodeficiency virus (HIV)
Illegal drug use
Alcohol use
Motor vehicle injuries
Firearm-related incidents
More than 10 times as many U.S. citizens have died prematurely from cigarette smoking than have died in all the wars fought by the United States.1
Smoking causes about 90% (or 9 out of 10) of all lung cancer deaths.1,2 More women die from lung cancer each year than from breast cancer.5Estimates show smoking increases the risk:For coronary heart disease by 2 to 4 times1,6
For stroke by 2 to 4 times1
Of men developing lung cancer by 25 times1
Of women developing lung cancer by 25.7 times1
Smoking causes diminished overall health, increased absenteeism from work, and increased health care utilization and cost.1Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs.1,2
Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis.1,2
Cigarette smoking causes most cases of lung cancer.1,2
If you have asthma, tobacco smoke can trigger an attack or make an attack worse.1,2
Smokers are 12 to 13 times more likely to die from COPD than nonsmokers.1