How smoking is dangerous and harmful to human health

SMOKERS may have started smoking because their friends did or because it seemed cool and adopt the habit as a normal lifestyle without realizing the dangers posed to their body health. But they keep on smoking and never refrain because they have become addicted to nicotine, one of the chemicals in cigarettes. Nicotine is both a stimulant and a depressant. That means nicotine increases the heart rate at first and makes people feel more alert (like caffeine, another stimulant). Then it causes depression and fatigue. It’s a poisonous substance derived from tobacco, the substance that causes addiction to cigarettes the drug withdrawal from nicotine make people crave another cigarette to perk up again. According to many experts, the nicotine in tobacco is as addictive as cocaine or heroin. A cigarette is a product consumed through smoking and manufactured out of cured and finely cut tobacco leaves and reconstituted tobacco, combined with other additives then rolled or stuffed into a paper-wrapped cylinder (generally less than 120mm in length and 10mm in diameter). The cigarette is ignited at one end and allowed to smoulder for the purpose of inhalation of its smoke from the other (usually filtered) end, which is inserted in the mouth. When people smoke cigarettes, nicotine enters their bloodstream. The term cigarette, as commonly used, refers to a tobacco cigarette but can apply to similar devices containing other herbs, such as cannabis. Cigarettes contain nicotine which is toxic and are proven to be highly addictive, as well as a cause of multiple types of cancer, heart disease, respiratory diseases, circulatory diseases and birth defects( which include mental and physical disability) and emphysema.

A man who has become bed-ridden due to some lung complications caused by chronic smoking. His health has deteriorated as though he is suffering from Tuberculosis disease.
When smoking cigarettes, it delivers smoke to the lungs immediately and produce a rapid psychoactive effect. Substances, such as alcohol, nicotine, marijuana, and cocaine, which are unhealthy, are often illegal, and can lead to addiction. Although alcohol and nicotine are legal drugs, they can be just as dangerous as illegal drugs like marijuana and heroin. Experts say that, a chronic cigarette smoker, or a chain smoker in other words experiences some changes in his body when one refrains from smoking. If you smoke regularly, you're probably physically addicted to nicotine and your body may experience some symptoms of withdrawal when you quit. These may include, headaches or stomachaches, crabbiness, jumpiness, or depression, lack of energy, dry mouth or sore throat, desire to pig out. The dangers of smoking cigarettes are often greatly exaggerated while the benefits are downplayed and have short-term health benefits. Now, smoking cigarettes is certainly bad physically, but the threat of diseases such as lung cancer or emphysema are made out to be worse than they actually are. The major latest reports about chronic smoking shows that, Smoking harms nearly every organ of a human body, causing many diseases and thus, reducing body health in general. Quitting smoking has immediate as well as long-term benefits, reducing risks for diseases caused by smoking and improving your health in general. Smoking cigarettes with lower tar and nicotine provides no clear benefit to health. The list of diseases caused by smoking has been expanded to include abdominal aortic aneurysm, acute myeloid leukemia, cataract, cervical cancer, kidney cancer, pancreatic cancer, pneumonia, periodontitis, and stomach cancer. A study printed in 2001 by Michael Houlihan, titled "Effects of smoking/nicotine on performance and event-related potentials during a short-term memory scanning task" showed that smoking cigarettes, or more specifically the nicotine in cigarettes, has a positive effect on short-term memory. A "denicotinized" cigarette and a "nicotine-yielding" cigarette were used to show the difference between the amount of nicotine ingested and the effect on short-term memory. This study basically showed that smoking shortens response time and it also positively affects event-related potentials. The response time was more greatly affected so, this shows that nicotine shortens response time by affecting response-related processes.