What are causes and effects of Smoking?

There are many causes which make people smoke, however it can be divided into two main causes: physical and psychological. First cause which is physical concerns the human body's needs. Nicotine contained in cigarette is an addictive substance. It is the chemical which causes addiction. Nicotine reduces tension in the muscles and allows smokers to relax so they feel that they can relieve stress by smoking. Nicotine can also have a calming effect on people who are anxious and worried. This is why it can bring a feeling of tranquility and help smokers to cope with stress. Thus, people smoke when they are depressed, lonely or bored. Nicotine is absorbed by the smoker's lung and intestines. Very quickly, nicotine can stimulate brain and certain types of nerves so heart rate and blood pressure go up; respiration increases. A little nicotine makes smokers feel more energy and improve concentration. As a consequence, these physical effects created by smoking play an important role in making people feel the need to smoke. Smoking can lead to serious complications including asthma, pancreas, lung and stomach cancer due to the large number of carcinogens (cancer causing chemicals) and other various substances added to it. It is a health hazard for both smokers and non-smokers and it is especially harmful to unborn babies. Although smokers claim that it helps them to relax and release stress, the negative aspects of the habit take over the positive. As it has been stressed by the scientists and experts, there are some very severe reasons of smoking but its crucial consequences should also be taken into consideration.

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Tobacco smoke is harmful to smokers and nonsmokers.
Cigarette smoking causes many types of cancer, including cancers of the lung, esophagus, larynx (voice box), mouth, throat, kidney, bladder, pancreas, stomach, and cervix, as well as acute myeloid leukemia. Smoking also causes heart disease, stroke, aortic aneurysm (a balloon-like bulge in an artery in the chest), chronic obstructive pulmonary disease (COPD) (chronic bronchitis and emphysema), asthma, hip fractures, and cataracts. Smokers are at higher risk of developing pneumonia and other airway infections


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Most people start smoking when they are in their teens and are addicted by the time they reach adulthood. Some have tried to quit but have returned to cigarettes because smoking is such a strong addiction. It is a habit that is very difficult to break. There are many different reasons why people smoke.Three of the main reasons that young people smoke are to look mature, to be like their friends, and to experiment. Since teens see older people all around them smoking, especially their parents and relatives, they smoke to act older. Adults smoke for other reasons. They may have a lot of stress and pressures because of economic and personal problems. They may be unemployed or working but not making enough money to take care of themselves and their families.Finally, there are people who say they love to smoke. Smoking gives them pleasure. It just makes them feel good. Smoking is responsible for several diseases, such as cancer, long-term (chronic) respiratory diseases, and heart disease, as well as premature death. Smoking also worsens heart disease risk factors. It raises blood pressure, makes it harder to do exercise, makes the blood clot more easily than it should. People who have undergone bypass surgery and smoke have a higher risk of recurrent coronary heart disease.

Chamaiporn 017 4EN

Smoking harms nearly every organ of the body and diminishes a person’s overall health. Smoking is a leading cause of cancer and death from cancer. It causes cancers of the lung, esophagus, larynx, mouth, throat, kidney, bladder, pancreas, stomach, and cervix, as well as acute myeloid leukemia.
Smoking affects how the immune system functions by causing oxidative stress. This in turn causes DNA mutation, setting the stage for cancer and heart disease. Oxidative stress is also thought to be a contributor to the aging process. Antioxidants are nature's way of combating the damage oxidative stress causes to the body's cells. Smokers have less antioxidants in their blood than nonsmokers.

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The effects of smoking are serious. It can harm nearly every organ of the body. If you smoke cigars daily, you are at increased risk for developing heart disease and lung diseases such as emphysema. Smoking cigarettes is the number-one risk factor for lung cancer. Every cigarette you smoke damages your breathing and scars your lungs. Moreover, Research has linked smoking to an increased risk of developing age-related macular degeneration, cataract, and optic nerve damage, all of which can lead to blindness.

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I think the smoking is not good for everyone. The smoking destroy health and lead to lung cancer
and chronic lung problems. The Smoking can lead to other organ damage dangerous to other persons.
I don't like smoking very much and I hate a person who is smoking.

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Smoking leads to various diseases like asthma, insomnia, heart murmurs, emphysema, strokes, heart disease and lung cancer among a wide variety of diseases and conditions.

Kullasatree010 4EN

The main reason people start smoking is that they are in an environment where other persons are smoking. Once you have started to smoke it is difficult to stop smoking some studies show that only 5 - 10 % of smokers can stop smoking permanently. Tobacco contains nicotine a stimulant that effects your nerve system, you feel more alert and can work longer time not being tired.
The effects of frequent smoking for many years is that you are likely to get lung cancer or other kinds of caners related to smoking.
Smoking is forbidden in many places like public offices, restaurants, public transport and in some countries even outdoor.
In Thailand you are fined 2.000 Bath if you smoke where it is not allowed to smoke.

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Soming i

The cause of someone taking up the smoking habit can include seeing someone they idolize smoking. This can include an older brother, sister, or parent. A person may also take up the smoking habit because they think the act will make them look cool or make them appear tough. The effect of smoking can include yellow fingers, yellow teeth, bad breath, and a number of health conditions. These health conditions can include asthma, lung cancer, throat cancer, and death.


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Cigarettes contain more than 4000 chemical compounds and at least 400 toxic substances.
When you inhale, a cigarette burns at 700°C at the tip and around 60°C in the core. This heat breaks down the tobacco to produce various toxins.
As a cigarette burns, the residues are concentrated towards the butt.
The products that are most damaging are:
tar, a carcinogen (substance that causes cancer)
nicotine is addictive and increases cholesterol levels in your body
carbon monoxide reduces oxygen in the body
components of the gas and particulate phases cause chronic obstructive pulmonary disorder (COPD).
The damage caused by smoking is influenced by:
the number of cigarettes smoked
whether the cigarette has a filter
how the tobacco has been prepared.

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