In fact, according to the Centers for Disease Control and Prevention (CDC), smoking cigarettes increases the risk of dying from all causes, not just those linked to tobacco use.
Smoking cigarettes affects the respiratory system, the circulatory system, the reproductive system, the skin, and the eyes, and it increases the risk of many different cancers.
In this article, we look at 10 possible effects of smoking cigarettes.
Image credit: Stephen Kelly, 2019
1. Lung damage
Smoking cigarettes affects lung health because a person breathes in not only nicotine but also a variety of additional chemicals.
Cigarettes are responsible for a substantial increase in the risk of developing lung cancer. This risk is 25 times greater for men and 25.7 times greater for women.
The CDC report that roughly 9 out of 10 lung cancer deaths is linked to smoking.
Smoking cigarettes also presents a greater risk of developing and dying from chronic obstructive pulmonary disorder (COPD). In fact, the American Lung Association report that smoking causes 80 percent of COPD deaths.
2. Heart disease
Smoking cigarettes can damage the heart, blood vessels, and blood cells.
The chemicals and tar in cigarettes can increase a person’s risk of atherosclerosis, which is the buildup of plaque in the blood vessels. This buildup limits blood flow and can lead to dangerous blockages.
Smoking also increases the risk of peripheral artery disease (PAD), which occurs when the arteries to the arms and legs start to narrow, restricting blood flow.
Research shows a direct link between smoking and developing PAD. Even those who used to smoke face a higher risk than people who never smoked.
Having PAD increases the risk of experiencing:
3. Fertility problems
Smoking cigarettes can damage a female’s reproductive system and make it more difficult to get pregnant. This may be because tobacco and the other chemicals in cigarettes affect hormone levels.
In males, the more cigarettes a person smokes and the longer they smoke for, the higher the risk of erectile dysfunction. Smoking can also affect the quality of the sperm and therefore reduce fertility.
4. Risk of pregnancy complications
Smoking can increase the risk of ectopic pregancy and reduce the baby’s birth weight.
According to the CDC, smoking can affect pregnancy and the developing fetus in several ways, including:
- increasing the risk of ectopic pregnancy
- reducing the baby’s birth weight
- increasing the risk of preterm delivery
- damaging the fetus’s lungs, brain, and central nervous system
- increasing the risk of sudden infant death syndrome
- contributing to congenital abnormalities, such as cleft lip or cleft palate
5. Risk of type 2 diabetes
Smoking can also make it more difficult for people with diabetes to manage their condition.
6. Weakened immune system
Smoking cigarettes can weaken a person’s immune system, making them more susceptible to illness.
It can also cause additional inflammation in the body.
7. Vision problems
Other vision problems related to smoking include:
8. Poor oral hygiene
Symptoms of gum disease include:
- swollen and tender gums
- bleeding when brushing
- loose teeth
- sensitive teeth
Smoking tobacco can limit a person’s ability to taste and smell things properly. It can also stain the teeth yellow or brown.
9. Unhealthy skin and hair
Smoking can cause the hair and skin to smell of tobacco. It can also contribute to hair loss and balding.
10. Risk of other cancers
In addition to the well-documented link with lung cancer, smoking cigarettes can also contribute to other forms of cancer.
People who smoke are also three times as likely to develop bladder cancer than people who do not.
Cigarettes can also increase the risk of:
- mouth cancer
- laryngeal cancer
- throat cancer
- esophageal cancer
- kidney cancer
- cervical cancer
- liver cancer
- colon cancer
- acute myeloid leukemia
Secondhand smoke can increase the risk of colds, make asthma worse, and damage the heart.
The ill effects of smoking cigarettes do not only affect people who smoke. Secondhand smoke can also have significant health effects on family members, friends, and coworkers.
Effects of exposure to secondhand smoke include:
- increasing the risk of colds and ear infections
- making asthma worse
- raising blood pressure
- damaging the heart
- reducing levels of high-density lipoprotein, or “good,” cholesterol
Once a person stops smoking, the benefits start accumulating. These include clearer skin, improved oral health, more stable hormones, a stronger immune system, and a reduced risk of many types of cancers.
Some other benefits of quitting smoking include:
- After 20 minutes–12 hours: Heart rate and carbon monoxide in the blood drop to normal levels.
- After 1 year: The risk of a heart attack is much lower, as is blood pressure. Coughing and upper respiratory problems begin to improve.
- After 2–5 years: The risk of stroke drops to that of someone who does not smoke, according to the CDC.
- After 5–15 years: The risk of mouth, throat, esophagus, and bladder cancer is reduced by half.
- After 10 years: The risk of lung cancer and bladder cancer is half that of someone who currently smokes.
- After 15 years: The risk of heart disease is similar to that of someone who never smoked.
Nicotine is an addictive drug and can cause withdrawal symptoms when a person stops using it. These symptoms including cravings, increased appetite, and irritability. Cravings and other effects typically subside over time.
A doctor or other healthcare professional can help a person take positive steps toward quitting smoking.
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