Smoking is dangerous and can harm nearly every organ of the body. It Causes many diseases and reduces the health of smokers in general.
Quitting smoking lowers your risk for smoking-related diseases and can add
years to your life.
Smoking connected to Death
Smoking is the leading preventable cause of death in the United States.
Cigarette smoking causes more than 480,000 deaths each year in the United
States. This is about one in five deaths.
Smoking causes more deaths each year than all of these combined:
* Human immunodeficiency virus (HIV)
* Illegal drug use
* Alcohol use
* Motor vehicle injuries
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
during its history.
Smoking causes about 90% (or 9 out of 10) of all lung cancer deaths in men
and women. More women die from lung cancer each year than from
About 80% (or 8 out of 10) of all deaths from chronic obstructive pulmonary
disease (COPD) are caused by smoking.
Cigarette smoking increases risk for death from all causes in men and
The risk of dying from cigarette smoking has increased over the last 50 years
in men and women in the United States.
Smoking and Increased Health Risks
Smokers are more likely than nonsmokers to develop heart disease, stroke, and
>> Smoking is estimated to increase the risk—
— For coronary heart disease by 2 to 4 times
— For stroke by 2 to 4 times
— Of men developing lung cancer by 25 times
— Of women developing lung cancer by 25.7 times
>> Smoking causes diminished overall health, such as self-reported poor health,
increased absenteeism from work, and increased health care utilization and
Smoking and Cardiovascular Disease
Smokers are at greater risk for diseases that affect the heart and blood vessels
>> Smoking causes stroke and coronary heart disease—the leading causes of
death in the United States.
>> Even people who smoke fewer than five cigarettes a day can have early signs
of cardiovascular disease.
>> Smoking damages blood vessels and can make them thicken and grow
narrower. This makes your heart beat faster and your blood pressure go up.
Clots can also form.
>> A heart attack occurs when a clot blocks the blood flow to your heart. When
this happens, your heart cannot get enough oxygen. This damages the heart
muscle, and part of the heart muscle can die.
>> A stroke occurs when a clot blocks the blood flow to part of your brain or
when a blood vessel in or around your brain bursts.
>> Blockages caused by smoking can also reduce blood flow to your legs and
Smoking and Respiratory Disease
Smoking can cause lung disease by damaging your airways and the small air
sacs (alveoli) found in your lungs.
>> Lung diseases caused by smoking include COPD, which includes emphysema
and chronic bronchitis.
>> Cigarette smoking causes most cases of lung cancer.
>> If you have asthma, tobacco smoke can trigger an attack or make an attack
>> Smokers are 12 to 13 times more likely to die from COPD than nonsmokers.
Smoking and Cancer
Smoking can cause cancer almost anywhere in your body: (See figure above)
>> Blood (acute myeloid leukemia)
>> Colon and rectum (colorectal)
>> Kidney and ureter
>> Oropharynx (includes parts of the throat, tongue, soft palate, and the tonsils)
>> Trachea, bronchus, and lung
If nobody smoked, one of every three cancer deaths in the United States would
not happen. Smoking increases the risk of dying from cancer and other
diseases in cancer patients and survivors.
Smoking and Other Health Risks
Smoking harms nearly every organ of the body and affects a person’s overall
— Smoking can make it harder for a woman to become pregnant and can affect
her baby’s health before and after birth. Smoking increases risks for:
* Preterm (early) delivery
* Stillbirth (death of the baby before birth)
* Low birth weight
* Sudden infant death syndrome (known as SIDS or crib death)
* Ectopic pregnancy
* Orofacial clefts in infants
* Smoking can also affect men’s sperm, which can reduce fertility and also
increase risks for birth defects and miscarriage (loss of the pregnancy).
* Smoking can affect bone health.
* Women past childbearing years who smoke have lower bone density
(weaker bones) than women who never smoked and are at greater risk
for broken bones.
* Smoking affects the health of your teeth and gums and can cause tooth
* Smoking can increase your risk for cataracts (clouding of the eye’s lens that
makes it hard for you to see) and age-related macular degeneration (damage
to a small spot near the center of the retina, the part of the eye needed for
* Smoking is a cause of type 2 diabetes mellitus and can make it harder to
control. The risk of developing diabetes is 30–40% higher for active smokers
* Smoking causes general adverse effects on the body. It can cause
inflammation and adverse effects on immune function.
* Smoking is a cause of rheumatoid arthritis.
Quitting and Reduced Risks
= Quitting smoking cuts cardiovascular risks. Just 1 year after quitting
smoking, your risk for a heart attack drops sharply.
= Within 2 to 5 years after quitting smoking, your risk for stroke could fall to
about the same as a nonsmoker’s.
= If you quit smoking, your risks for cancers of the mouth, throat, esophagus,
and bladder drop by half within 5 years.
= Ten years after you quit smoking, your risk for lung cancer drops by half.