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Should addiction be viewed as a brain disease? Consider the implications of drug actions on the mesolimbic dopaminergic pathway
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Today I will be talking about how drugs can affect the brain. There are many drugs in the world we know today to name some examples marijuana, heroin, cocaine, and methamphetamine. I know what your thinking how do these drugs effect my brain well I’m going to tell you.
How do drugs affect you brain? Well some drugs like marijuana and heroin have the same chemical structures of are neurotransmitter which allows them to send in signals to our brain which can mess up are brain and our body. While other drugs like cocaine and methamphetamine cause our nerve cells to release to much dopamine which leads to exaggerated messages in the brain. Why do people like doing these drugs? Because of the pleasure it gives them after each use. Most of the drugs
In Margaret Talbot 's article about neuroenhancing drugs, she uses tone, appeals, and evidence from various sources. Talbot also utilized stories from past students that had used these drugs to enhance their academic performance, along with their work ethic, because they felt they needed an academic aid. Throughout this article, Talbot is trying to inform our society of the effects of neuroenhancing drugs, as well as get her point across about how she feels about this issue. She uses evidence from past college students that displays her opinion on the use of these drugs for nonmedicinal use. According to her writing, the use of these drugs is becoming more widespread than it should. In my analysis I will focus on how Talbot uses these strategies
When marijuana is used starting from early age it affects the brain development and its function. a) Use of the drug impairs memory, thinking and learning process by affecting connection between the neurons of the brain necessary for these functions. III. Marijuana use could also have a physical effect on the person. 1.
The brain is the most complicated part of the human body. I will begin explaining certain parts and their functions. In doing this to I hope to give a better understand of our brain while implicating the possibilities of chemical induced complications “The brain with its 15 billion neurons and nerve cells operates using chemical and electrical messages: (Swanson, 1975).1 This is how we perceive our senses. Differences in the way our brain translates these messages can impair perceptions. Hallucinogens prevent the brain from receiving all of these messages in order. All of the information that we receive is through millions of transactions of neurons, like a computer, marijuana alters these transactions .
According to the National Institute on Drug Abuse marijuana causes the user to feel euphoric by acting on the brain’s reward system. The euphoria is caused by the release of dopamine it to the user system. Other effects can include heightened sensory perception (e.g., brighter colors), laughter, altered perception of time, and increased appetite. Marijuana also inhibits the formation of new memories and causes coordination and balance to be degraded. These reactions are caused by binding the receptors in the cerebellum and base ganglia. The effect is similar to the impairments that are normally associated with consuming alcohol. Habitual users can also develop acute psychosis, a fundamental derangement of the mind (as in schizophrenia) characterized by defective or lost contact with reality especially as evidenced by delusions, hallucinations, and disorganized speech and behavior (Merriam-Webster Dictionary). The IQ level of a marijuana users also decreases over time according to a Duke University study conducted by clinical psychologist Madeline Meier “people who bega...
The most commonly abused substances are Nicotine, Inhalants, Alcohol, Cocaine, Amphetamines, Prescription medications, Heroin, Ecstasy and Marijuana. 1a(National Institute on Drug Abuse, 2011) Initially, a person may find themselves using substances voluntarily and with confidence that they will be able to dictate their personal use. However, over the period of time that drug use is repeated, changes are taking place throughout the brain, whether it is functionally or structurally. Drugs contain chemicals that enter the communication system of the brain and disturb the way in which nerve cells would typically send, receive, and process information. The chemicals within these drugs will cause a disruption to the communication system by either imitating the brain’s natural chemical messengers or by over-stimulating the brains “reward system” by sending mass amounts of dopamine. As an individual prolongs his or her use of these substances, they may develop an addiction.
Drug abuse has changed over the years due to the trends that Americans face from the encouragement of different cultures. The abuse of substances creates many health problems. The following will discuss the past and current trends of drug use and the effects these drugs have on the health of the individuals who abuse the drugs.
There are many biological factors that are involved with the addicted brain. "The addicted brain is distinctly different from the nonaddicted brain, as manifested by changes in brain metabolic activity, receptor availability, gene expression, and responsiveness to environmental cues." (2) In the brain, there are many changes that take place when drugs enter a person's blood stream. The pathway in the brain that the drugs take is first to the ventral tegmentum to the nucleus accumbens, and the drugs also go to the limbic system and the orbitofrontal cortex, which is called the mesolimbic reward system. The activation of this reward system seems to be the common element in what hooks drug users on drugs (2).
Damage to the prefrontal cortex is the damage to the frontal lobes. This sort of damage causes the inability to plan or behave in ways society says you should. When damage occurs in childhood, the individual who is affected may never have a real understanding or be able to grasp the concept of social norms. When you are older and the damage occurs later on in life, there is and understanding on how they should act, but they are just not capable of achieving normal behavior. Damage to the prefrontal cortex can also: suppress speech, lack empathy, antisocial behaviors, cause dishonesty, and difficulty with organization as well as impulse control. Researchers have linked that many of the worst criminals have damage to their prefrontal cortex,
Development is a never ending cycle in life. Each person begins to develop from conception until passing away. Now, while most people think that development starts after birth that is incorrect. Development starts as soon as the baby is conceived. Everything that a woman carrying a baby does or takes place in will translate into the baby. The baby shares a blood flow with the mother. Drugs, even legal drugs, will go into the mother’s blood stream which will then go into the baby’s blood stream. The “maternal blood flows through the uterine arteries to the spaces housing the placenta, and it returns through the uterine vein to the maternal circulation” (Santrock, 2012, p. 80). This means that anything that enters into the blood stream will also affect the baby. Each type of drug is under a certain category. Psychoactive drugs are drugs that are constantly being studier. According to Santrock (2012), psychoactive drugs are drugs that act on the nervous system to alter states of consciousness, modify perception, and change moods. (p.83). They come in three categories: stimulants, depressants, and hallucinogens. Stimulants include caffeine, cocaine, methamphetamine and nicotine. Some people say that pregnant woman do not know what taking these into their system is doing to their baby. Stimulants are becoming more popular and there effects need to be studied and known. Each stimulant affects the baby in short-term and long-term.
First example is our brains are flooded with the natural forms of the drug. The form of the drug I am talking about is Cannabis, which is another form of marijuana. Cannabis or Marijuana has many advantages for health reasons: blocks pain, erases memories and triggers hunger. Some new studies show that they also regulate the immune system, help reproduction and protect the brain from stroke and trauma damage. Another scientific study showed that marijuana had certain ingredients in it that could counter act nausea, another plus for patients with cancer or aids.
Amphetamines are typically used to provide the same effect that pure adrenaline does. The drug is specified for people with attention deficit disorder with hyperactivity as well as narcolepsy, although if you decide to abuse the drug and use it for recreational purposes you may start to feel paranoia and nervousness. Using amphetamines can also put a strain on the circulatory system by causing the user's blood pressure to increase suddenly. (Amphetamine) Long term psychological effects of the drug can cause something called amphetamine psychosis which is much like paranoid schizophrenia. This could lead towards hallucinations, paranoid delusions, and obsessions. (Amphetamine)
The use of drugs is a controversial topic in society today. In general, addicts show a direct link between taking drugs and suffering from their effects. People abuse drugs for a wide variety of reasons. In most cases, the use of drugs will serve a type of purpose or will give some kind of reward. These reasons for use will differ with different kinds of drugs. Various reasons for using the substance can be pain relief, depression, anxiety and weariness, acceptance into a peer group, religion, and much more. Although reasons for using may vary for each individual, it is known by all that consequences of the abuse do exist. It is only further down the line when the effects of using can be seen.
Abuse can cause countless medical problems to the body. A person who is addicted will continue to stimulate themselves regardless if they are aware of the negative chain reactions. Once addicted, it becomes difficult to stop due to how the body has become dependent. Health will be harmed the more a stimulant is used. Health effects include: cardiovascular disease, strokes, cancer, HIV/AIDS, hepatitis, lung disease, mental disease, birth defects. Mental health is what keeps a person in the right mind to make better decisions and have better control in life. Drugs have the ability to change mood and behavior. If drugs have affected the brain already, the desire increases which changes mental health. Some may not realize that they have been affected their health negatively. “A person who abuses drugs may not realize they have a problem until pronounced effects of drug abuse are seen, often physically. While drug abuse effects on the body vary depending on the drug used, all drug abuse negatively impacts one 's health (Addictions Community). Since drugs create many health issues, treatment is not a simple task. Treatments are hard to obtain and addictions often go
Drugs. The word itself sounds dangerous. Little is it known that drugs are even more dangerous that most people can ever imagine. A complete overview and insight into the world of drugs and the dangers of illegal, addictive substances will be provided. Drugs are an evident hazard and epidemic in today’s society, so it is definitely necessary that a full point of view is apparent.
Drugs are chemicals that change the way a person's body or mind works. Drugs are not good for health as they have many side effects and damage our brain, heart and other important organs. Drug is a depressant that slows down the functions of the central nervous system and makes us less aware of the events around us. I...