Although smoking does not have immediately lethal effect, it is still deadly, poisoning us and people around us.
Each cigarette affects blood pressure, oxygen consumption, heart function and the function of other important organs. This stress poses to smokers health risk with unforeseeable consequences.
Need for cigarette causes primarily nicotine, contained in the cigarette smoke, which is at higher doses strong neurotoxin. In small doses nicotine stimulates brain activity. He can temporarily relieve fatigue and moodiness. However, higher doses of nicotine have the opposite effect, the performance gets lower. With use of cigarette, our brain get use to of nicotine and after is hard to stop,at least in most cases.
In fact nicotine is undoubtedly a factor that causes the need for smoking and is a factor that causes physical dependence.
A toxic dose of nicotine is from 0.003 to 0.005 g. and the lethal dose is from 0.04 to 0.06 g.
Tar tobacco contains more than 200 components, many of them are toxic. For now it is known that 70 components can cause tumors. The last third of the cigarette contains more tar, nicotine and other toxins, more than in the first two-thirds together. That’s why you can hear from some people advising to smoke at least only half cigarette.
The content of tar in the smoke filter cigarette varies and it’s usually between 10 and 20 mg. per cigarette. Smoking 10 cigarettes a day, in the lungs reaches 500 g. tar for a year. One part of it is excreted, while the second part is lagging behind in the airways and lungs as a constantly present risk factor. Even the organs for excretion are greatly endangered by harmful substances from tobacco smoke. These substances can cause tumors in the kidneys and bladder. Kidney cancer, for example, for smokers is 5 times more common than in non-smokers.
On each pack of cigarettes is indicated the content of nicotine and tar.
CO – carbon monoxide – one of the strongest poisons with high affinity to hemoglobin – disappears Carboxyhemoglobin that blocks the supply of whole body oxygen. Therefore occurs headaches, dizziness, impaired breathing and spasms of blood vessels.
CN – hydrocyanic acid – lethal dose of 0.05 g – it inhibits cell respiration enzymes,inhibit breathing, and therefore for the absence of oxygen, dizziness, vision problems and grace muscle occurs.
Ammonia – gives a special, acrid smell of burning tobacco. On the mucous membranes of the mouth and the nose causes a reduction capabilities senses of taste and smell, and the mucosa of the larynx can cause incurable consequences.
Various aldehydes – among others, May irritate the respiratory tract.
In addition substances that are synthesized in tobacco during smoking, the tobacco industry technologists in order to achieve commercial effects in the production process added materials which are toxic, carcinogenic etc.
Passive smoking damages health
Tobacco smoke is harmful to nonsmokers and staying in smoky area and forcibly inhaled tobacco smoke are exposed to so-called passive smoking. The risk of death due to coronary heart disease is 25% and the risk of cancers of the bronchi and lungs is 30-35% higher in non-smokers who are exposed to tobacco smoke, but in non-smokers who are not exposed to tobacco smoke. In patients with asthma, secondhand smoke causes discomfort and even asthma attacks.
Inhalation of tobacco smoke (passive smoking) in infants and young children leads to frequent bronchitis, pneumonia, asthma and other diseases of the respiratory system and reduced lung function, and acute and chronic inflammation of the middle ear. Sudden infant death syndrome is also more common in children exposed to tobacco smoke.
Tobacco smoke is hazardous to health in the workplace. As said before, hazardous ingredients in tobacco smoke (carbon monoxide, nicotine, polycyclic aromatic hydrocarbons, acetaldehyde, acrolein, some pesticides, cadmium, chromium, lead, etc.) act not only as irritants, toxins, carcinogens, mutagens, but make the body more sensitive to things of work environment.
In some of next articles you can read about What happens in your body after 1 cigarette; Tips to help stop smoking etc.