Drugs and human brain

 

Brain is the most complex organ in our body, it is consisted of 100 billion nerve cells, when I first saw the intro, I felt very surprised that there are so many nerve cells in our brains. Brain injury and lots of drugs can make influence to our brains. In the brain video, it is very interesting that by using different colors to describe different colors in words. The right brain controls the color, and the left brain controls the word. So, for example, if we use purple color font on the word “Green”, what should we read it? Purple or Green.

            There are 5 main types of brain diseases. They are neurological disorders, storage disorders, personality and mood disorders, developmental and prion diseases. In the “Brain and Mental disorders” PowerPoint, multiple sclerosis is a slowly progressive neurological disease characterized by patches of demyelination in brain and spinal line, it can influence as it were oligodendrocytes not Schwann cells. It has critical neural recuperation regularly happens amid periods of unconstrained abatement. But the cause is unknown and the course is exceedingly variable.

            The incidence of multiple sclerosis is usually between age 20-40, women have higher probability to get this disorder than men, environment can also influence this disorder. In north part of the country, the rate of the incidence is between 0.03% to 0.13%. After age 15, the location almost has no influence on this disorder. In the PowerPoint, United States, Canada, Iceland, United Kingdom, Germany, Poland, New Zealand and Sweden are under high risk of getting the incidence of multiple sclerosis. For the treatments of multiple sclerosis, it could be up to 10 years, after 10 years or long period of time, significant recovery could occur. β-interferon seems could help preventing relapse and delaying progression of the disease.

            I also want to talk about the Alzheimer’s disease. Even right now, we also don’t know what caused Alzheimer’s disease. But, the risk of Alzheimer’s disease is heritable, some Alzheimer’s infection patients with a particular hereditary issue that can cause early-onset and serious frame of Alzheimer’s disease at approximately age of 45. But other Alzheimer’s disease patients don’t follow that. Most Alzheimer’s disease patients have plaques in part of the brain that could appear cell misfortune in early Alzheimer’s disease: average transient projection regions and cortex in late Alzheimer’s infection, which all zones that create or get acetylcholine. There are several kinds of drugs that could use to treat Alzheimer’s disease like Cognex, Aricept, Reminyl and etc. These kinds of drugs could improve some daily living skills, delay in progression of disease, but just have some small effects and only occur in a small number of patients. And, it is very toxic to livers.

Drugs effect on our bodies and mind because drugs can produce chemicals that produced in our bodies. Drugs then bind to specific receptor site in our bodies, drugs can change our mood and behaviors because drugs work in our brain. Abuse use of drugs especially psychoactive drugs can result in addiction, when get in addiction, people have to use drugs, this is a very high risk of those people own, but also for their families. Addiction is a disease that can change the structure and chemistry of brain. Abuse use of drugs is a very bad result. Drugs can also cause other effects like neuroadaptation, hypo frontality and memory loss. There are also many types of drugs, a type of drugs is called illicit drugs. Illegal drugs are those drugs that are illegal to have, produce and sell. The most three reasons why college students use illicit drugs are reduce stress, get high and social pressure, but there are many ways to achieve the goals of these, not only drugs can do that. Schedule I drugs are the most potential for abuse and there is no medicinal purpose. Schedule II, III, IV, and V drugs have some medicinal purposes, but when abuse of these kinds of drugs, they will also have serious threat to human bodies.

            Drugs also can have effects on physiological changes and mental dependence. I think mental dependence is more serious than physiological dependence. There are some ways to take care of physiological dependence, but for mantal dependence, there are no specific ways to fix, it depends on self-control. Drugs were created to reduce the pain like during surgery, but people even don’t have pain tried them. If we use drugs to reduce pain during surgery, there is a very high probability that we will not get addicted to them, but if we don’t have pain and we tried them, once the reward loop forms, we will get addicted to them. That is bad not only to ourselves, but also to our families.

            Tabacco and alcohol are called legal drugs, but it seems like legal drugs can cause more deaths than illegal drugs according to the data from PowerPoint. People get addicted to Tobacco and Alcohol but they don’t know, once they don’t smoke Tobacco or drink Alcohol, they will feel very uncomfortable. More and more people get addicted to illegal drugs quit them successful in the United States, but fewer people get addicted to Tobacco and Alcohol quit them successfully. I think Tobacco and Alcohol are even more dangerous than illegal drugs. Drugs can affect our brain and then affect our behaviors whatever they are legal or illegal. After get addiction, the brain would change.