Abstract: The human brain is the most complex organ in the body. Its functions control every aspect of life. It is important to attempt to comprehend the workings of the brain and to learn the effects of natural and unnatural substances on it. In order to look at chemical effects on the brain, one must first get an understanding for the chemicals as well as how the brain works to interpret and react to signals set out by these chemicals, rhythmically and physiologically. Several chemicals observed include: cocaine (and other chemicals), seratonin, and melatonin.
Nature and life are full of rhythms. Rhythms in nature include: day and night, seasons, tides, and lunar and solar cycles. Humans are driven by rhythms like: heartbeats, breathing rates, sleep patterns and brain rhythms which include chemical and hormonal secretion. Without rhythms, life would be uncontrollable and chaotic.
We know relatively very little about the complex organ called the brain. Our brain responds to nature's eternal external rhythms like seasons, tides, the sun and the moon. Animal instincts for survival are based on rhythms and drives of the brain. The brain is a collection of tissues that perform and respond to basic functions, desires and needs. The human brain is the most changed, enriched and complex brain through evolutionary terms, however, in its most basic form, it is the same as other brains of the Animal Kingdom. If one eliminates the cerebral cortex, one basically eliminates humanity and the brain becomes identical to that of a cat. If one removes even more, the brain becomes like that of an iguana.
However, the human brain is not that simple, which makes it even more sensitive and fragile to outside forces...
... middle of paper ...
...ormation Processing: The Nervous System." Biology: Life on Earth. 3rd ed. New York: Macmillan Publishing Company, 1993. 776- 805.
The Brain [videorecording]. Videocassette. Prod. Encyclopaedia Britannica Educational Corporation. Open Universtity in association with Penn State, Division of Media and Learning Resources, c. 1993. 50 min.
Miller, Susan, Karen Springer, Peter Katel, and Binnie K. Fisher. "Melatonin Mania." Newsweek November 6, 1995: 60-63.
Need Writing Help?
Get feedback on grammar, clarity, concision and logic instantly.Check your paper »
- Cocaine is one of the oldest known psychoactive drugs to this day. It is a very addictive substance that directly affects the brain. Although it became very popular in the 80’s cocaine is by no means a ‘new’ drug. The drug itself is made from the leaves of a coca plant which have been consumed for over a thousand years and the purified form of cocaine, which is what you will see more commonly, has been documented in use for over one-hundred years. Ironically, despite its addictive nature cocaine has even been used as an active ingredient in medicinal elixirs for illnesses (drugabuse).... [tags: Cocaine, Drug addiction, Addiction, Dopamine]
1399 words (4 pages)
- ... However, the tradition was broken when the Spanish soldiers invaded Peru in 1532. Cocaine began to be used in clinical settings in 1884, around the same time Sigmund Freud, the father of psychoanalysis, published a book called “Uber Coca” which stated that Cocaine had “benefits” and it was a“magical” substance. Freud himself used Cocaine and even promoted its use, according to the article “COCAINE: A SHORT HISTORY. It gained such widespread popularity, that the book Cocaine And Your Nose, author Melanie Ann Apel points out that Cocaine had even been added to Coca Cola in 1886.... [tags: Cocaine, Drug addiction, Crack cocaine, Morphine]
1530 words (4.4 pages)
- Marisol Muneton Professor Muller BIOS 104 TA: Monica Farfan The Biology of Cocaine Addiction Drugs are addictive substances that produce pleasant states such as euphoria or relieve distress. Drugs are classified into categories which include: depressants, stimulants, and hallucinogens. Depending on the type of drug and the way it is used, referring to if it is sniffed, swallowed, injected, or smoked depends the effect the addiction of that drug has on the body. Scientists such as Koob and Le Moal argue that drug addiction is caused by the dysregulation of the reward mechanism and subsequent allostasis which is the ability to achieve stability through change (Cami and Farre, 2003).... [tags: Drug addiction, Cocaine, Addiction, Nicotine]
1945 words (5.6 pages)
- http://www.ceri.com/melaton.htmEffects of Melatonin Treatment In order to discuss Melatonin as a drug and its effects on behavior we need to define Melatonin and what role it plays in relation to brain and behavior. Melatonin is a hormone that is secreted into the bloodstream by the pineal gland. The pineal gland is a small, pea sized structure near the center of the brain. Signals from the eyes regulate the secretion of Melatonin. A person's internal clock, will fluctuate between a 23-25 hour a day cycle.... [tags: Biology Essays Research Papers]
813 words (2.3 pages)
- Specific Purpose: To inform my audience on the history of cocaine, current prevalence rates and health effects among other issues. 1.0 Introduction A. Attention Material: Cocaine is mostly known as an illegal drug, but very few truly acknowledge it for its medical purposes and fully understand its history in the country. Cocaine is a tropane ester alkaloid ,which is extracted from the leaves of the coca (Erythroxylon coca) plant (Clayton, 1996). Cocaine is considered the most powerful and most dangerous drug of natural origin.... [tags: Prevalance Rates, Health Effects, Drugs]
1390 words (4 pages)
- Cocaine and the Nervous System All drugs have a negative effect on the nervous system, but few can match the dramatic impact of cocaine. Cocaine is one of the most potent, addictive, and unpredictable recreational drugs, and thus can cause the most profound and irreversible damage to the nervous system. The high risk associated with cocaine remains the same regardless of whether the drug is snorted, smoked, or injected into the user¡¯s bloodstream. In addition to the intense damage cocaine can cause to the liver, intestines, heart, and lungs, even casual use of the drug will impair the brain and cause serious damage to the central nervous system.... [tags: Drug Drugs Coke Cocaine Essays]
1097 words (3.1 pages)
- Effects of Cocaine Physical effects of cocaine use include constricted peripheral blood vessels, dilated pupils, and increased temperature, heart rate, and blood pressure. The duration of cocaine’s immediate euphoric effects, which include hyper-stimulation and mental clarity, is dependent on the route of administration. The faster the cocaine is absorbed, the more intense the high and the shorter the duration of action. The ‘high’ from snorting may last 15 to 30 minutes, whilst that from smoking may last 5 to 10 minutes.... [tags: Papers]
561 words (1.6 pages)
- Melatonin: The Myths and Facts Melatonin is a hormone produced in the pineal gland. The pineal gland is about the size of a pea and is located in the center of the brain (http://www.milatonin.com/melfaq.htm). Melatonin is secreted at night or in the dark (http://www.ceri.com/melaton.htm). It is used to regulate the sleeping cycle. It is also found to correlate with a lot of other functions and problems in the body. Because of its many uses, melatonin is being manufactured by pharmaceutical companies as a dietary supplement.... [tags: Pharmacy Neurology Sleeping Papers]
2163 words (6.2 pages)
- Cocaine First of all this research paper will examine the history of cocaine, answer exactly who used it, effects of the drug and its addictive nature. People choose to write about cocaine so that others can clearly see and understand its historical origins and dangerous properties. Those who experiment with drugs should become aware of their dangerous effects and take caution. The more people that become knowledgeable about cocaine, the more they can protect themselves from seriously endangering themselves.... [tags: Essays Papers]
1907 words (5.4 pages)
- For many centuries people have used different drugs for various reasons. Depending on which decade you are in there are particular drugs of preference and abundant usage. Cocaine is most commonly used among 18-25 year olds rather then other age groups. I chose cocaine because it is what effects people my age most commonly. Cocaine was first used in the late 1800’s as a local anesthetic during surgeries. Cocaine is considered the most potent stimulant of natural origin. Cocaine can be used in many different ways.... [tags: essays research papers fc]
887 words (2.5 pages)