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Essay on the effects of nicotine
Essay on the effects of nicotine
Essay on the effects of nicotine
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Nicotine has many effects on different parts of your body. How it affects your neurotransmitters, brain parts, and nervous system are all different. The steps nicotine takes to be ingested in your body to produce pleasure and satisfy the addiction all take less than a minute. The effects of certain drugs on the brain vary with each substance. Nicotine affects the brain in the lobes and even in more particular areas such as the hippocampus.
Cigarettes contain about six-hundred ingredients. When they burn, they generate more than seven-thousand chemicals according to the American Lung Association. Many of those chemicals are poisonous and at least sixty-nine of them can cause cancer. Many of the same ingredients are found in cigars and in tobacco used in pipes and hookahs.
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Each neurotransmitter is like a key to a lock, called a receptor. Nicotine is shaped like the neurotransmitter called acetylcholine, which is a compound that occurs throughout the nervous system and acts as a neurotransmitter. “This compound is associated with muscle movement, breathing, heart rate, learning, and memory.” (National Institute on Drug Abuse, 2015) Nicotine attaches itself to the compound, acetylcholine, and mimics its actions and courses throughout the body. While it travels binded to acetylcholine it travels the body to many brain structures and body organs. These changes cause the smoker to feel abnormal when not smoking, in order to feel “normal” the smoker repeatedly smokes throughout the day making the process occur multiple
Nicotine binds to anticholinergic receptors which in turn cause dopamine to be released-causing a reward-benefit system
Although this is typically seen with recreational marijuana. Although some effects of patient’s using marijuana, can be that they lose motivation to participate in activities, and they may become tired, because the effects can cause your body to slow down. Marijuana mainly affects the neurons in the brain and the pathways, and when a patient uses marijuana they are inhibiting the normal brain development and the normal function. Effects of medical marijuana will be decreased because it is less potent than recreational marijuana, but may still affect the person. Some short term effects can be impaired memory, inability to problem-solve, and altered sense of time. Long term effects can be learning dysfunction from abnormal brain development, especially in teenagers. Studies have shown that although tobacco is usually the drug that leads to lung complications and problems, patients who smoke medical marijuana can also have lung issues because the drug is irritating to the alveoli. (Morrow,
Before D.A.R.E., I was not mindful of the extensive damage cigarettes and other tobacco products cause. Cigarette smoke contains over 200 harmful chemicals, including rat poison. Because of nicotine, cigarettes are highly addictive. As a result, smoking is the leading preventable cause of death in the U.S. It causes over 400,000 deaths annually.
People often turn to cigarettes to suppress hunger or relieve stress (Dichter). After a short period of time, a person can become addicted to the satisfaction they get from smoking a cigarette. Certain tobacco products contain toxins, carcinogens, and poisons that are all extremely harmful to the human body. 60 chemicals that are contained in a tobacco cigarette are cancer-causing agents (Wexner). It is these chemicals that make cigarettes, as well as other tobacco products, so addictive to their users.
There are over 7,000 chemicals present in tobacco smoke. Of those over 250 are deemed harmful, and of those 69 are cancer causing. Those cancer causing substances are called carcinogens (Nugel). It is clear that cancer and smoking can be linked. Smoking causes cancer of the lung esophagus, larynx, mouth,...
Many people do not know what nicotine does inside the brain. Here’s how it works when the nicotine reacts with the cells in the brain. It creates nerve impulse that jump chemically across a gap between two different nerve cells. This action is called a synapse. The neurotransmitter acetylcholine is used in this process and is used to affect specified receptors in the brain targeting post-synaptic nerve cells. After this process, the feel good brain messenger, dopamine, is released. This chemical is released into the brain creating an extreme high. The acetylcholine is then supposed to diminish the dopamine after completing its task. The drug disguises itself as acetylcholine causing the process of dopamine release to last for minutes rather than milliseconds.
Smoking cigarettes produces a rapid distribution of nicotine throughout the body, and reaching the brain within 10 seconds of inhalation (4). The nicotine causes a release of dopamine, neurotransmitters that carries information across synaptic clefts, in the dopamine circuit. This circuit, known as the brain's pleasure center, is an anatomically small cluster of cells. It has evolved over millions of years and mainly seems to reward activities that increase the likelihood of survival, such as sex and eating. This cluster of cells might be small but it reaches into regions of the brain involved with a variety of tasks (4). . These dopamine-releasing pathways course from the evolutionary older part of the midbrain to the hypothalamus and trigger activity of other cells, that extend from one part of the midbrain to an area in the forebrain known as the nucleus accumbens (2). It also branches out t...
Why is smoking addictive? The chemicals in the subjects brain (noradrenalin and dopamine) becomes altered by nicotine inhaled during smoking, this gives the subject a rush of pleasure/ stress release feeling immediately once inhaled. The subject then becomes reliant on the cigarette to provide them with this feeling as the brain becomes used to the chemical nicotine the subject begins to smoke more to get the same effect as it did in the earlier stages.
· contributes to the development of cancer of the bladder, pancreas, and kidney. · causes low birth weight in babies of women who use tobacco during pregnancy. · contains more than 4,000 chemical compounds, at least 43 of which cause cancer in humans and animals. · contains nicotine, which causes a chemical addiction to cigarette smoking through its effect on the nervous system.
can cause cancer ( http://www.nlm.nih.gov/medlineplus/tutorials/smokingthefacts/hp099201.html). Many of the ingredients in cigarettes are not substances that humans usually consume, but smokers (and the non-smokers around them) do. Some of the ingredients contained in cigarettes are a type of rat. poison, a type of paint stripper, a type of toilet cleaner, lighter. fuel, the chemical found in mothballs, poison that was once used in gas chambers and there is even a type of rocket fuel found in cigarettes (http://ash.org/additives.html).
Smoking does not only serve their own lungs of more than 4,000 hazardous substances including nicotine , tar, arsenic, ammonia , lead, acetone , ethanol , mercury and nickel list
Smoking cigarettes is a very deadly addiction that, unfortunately, affects 42.1 million adults in the United States and 6.4 million children. The reason why so many people get addicted to cigarettes is because of nicotine. Medicinenet.com says that nicotine is “made by the tobacco plant or produced synthetically”. Nicotine has powerful pharmacologic effects (including increased heart rate, heart stroke volume, and oxygen consumption by the heart muscle), as well as powerful psychodynamic effects (such as euphoria, increased alertness, and a sense of relaxation). Nicotine is also powerfully addictive.”
Almost every year the American people pay altogether around 100 billion dollars in medical costs related to smoking (Obama, 2009). Tobacco products not only can hurt your wallet, but also can jeopardize your health with many different illnesses and diseases. Tobacco products alone contain over 5,000 toxins; acrolein and acetaldehyde are two of the
It’s not that easy to quit smoking cigarettes, it can be very hard especially for many people who have been smoking for years. Many people are addicted to this drug because of the nicotine that’s in the tobacco, which is very addictive. Nicotine is the most common word that most smokers use and is there excuse why they can’t stop saying “it’s so addicting”. Like heroin or other addictive drugs, the body and mind quickly become so used to the nicotine in cigarettes that a person needs to have it just to feel normal (Smoking). Nicotine is the main addictive ingredient in a cigarette that activates synthesis of a chemical called dopamine in the brain (Naturstopp). This is just one of the chemicals that are in a cigarette, there are over 599 more chemicals that are in a cigarette. To name a few there is acetone, ammonia, tar, benzene, cadmium, hydrogen cyanide, carbon monoxide, and nitrogen oxides etc (Naturstopp). Some of these chemicals might not seem harmful, but it’s the burning of these chemicals that produce toxic and carcinogenic compounds more than 4000 of them (Naturstopp). Smoking cigarettes can be devastating; especially with each inhale you exhale.
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.