Sleep and Dream :: essays research papers

Sleep and Dreams Sleep is a behavioral state characterized by little physical activity and almost no awareness of the outside world. Sleep is actually made up of two separate and distinctly different states called REM sleep (rapid eye movement) and NREM sleep (non-rapid eye movement). With NREM sleep it is further divided into stage 1-4 based on the size and the speed of the brain waves. Step one is the stage when you drift off to sleep or doze off. For example people doze off in class because you are bored and have nothing to do but listen to the teacher talk. Some parents may call it a cat nape when their kids go to sleep for about ten minutes or so. The second stage is called an intermediate stage of sleep. That is when the sleeper will gradually descend deeper into sleep, becoming more and more detached from the outside world and progressively more difficult to awaken. Stage three is the beginning of deep sleep, occurring about thirty to forty five minutes after you first fall asleep. The deepest sleep occurs in Stage four. Stage three and four has the biggest and slowest brain wave. REM sleep, a mentally active period during which dreaming occurs, provided a biological explanation for this phenomenon. Scientists found that brain activity during REM sleep begins in the pons, a structure in the brainstem, and neighboring midbrain regions. The pons sends signals to the thalamus and to the cerebral cortex, which is responsible for most thought processes. There are several myths about sleep. For one, how much sleep a person should get? According to our text book people should sleep for at least eight hours to maintain sound mental and physical health. But every one doesn’t get the chance to slee p for that amount of time. There is no normal amount of time you should sleep. Everyone is not the same. For one I might sleep for five hours and feel refreshed enough to work another shift. Other hand my cousin might need more then eight hours of sleep to feel refreshed. Another myth is that you can learn complicated things, like a new language, while you are sleep. Personally no, because the only way you can learn something is to be awake. When a person fall to sleep while listening to a cd player or tape player while they are sleeping they are not going to hear what is said when they are in a deep sleep. Sleep and Dream :: essays research papers Sleep and Dreams Sleep is a behavioral state characterized by little physical activity and almost no awareness of the outside world. Sleep is actually made up of two separate and distinctly different states called REM sleep (rapid eye movement) and NREM sleep (non-rapid eye movement). With NREM sleep it is further divided into stage 1-4 based on the size and the speed of the brain waves. Step one is the stage when you drift off to sleep or doze off. For example people doze off in class because you are bored and have nothing to do but listen to the teacher talk. Some parents may call it a cat nape when their kids go to sleep for about ten minutes or so. The second stage is called an intermediate stage of sleep. That is when the sleeper will gradually descend deeper into sleep, becoming more and more detached from the outside world and progressively more difficult to awaken. Stage three is the beginning of deep sleep, occurring about thirty to forty five minutes after you first fall asleep. The deepest sleep occurs in Stage four. Stage three and four has the biggest and slowest brain wave. REM sleep, a mentally active period during which dreaming occurs, provided a biological explanation for this phenomenon. Scientists found that brain activity during REM sleep begins in the pons, a structure in the brainstem, and neighboring midbrain regions. The pons sends signals to the thalamus and to the cerebral cortex, which is responsible for most thought processes. There are several myths about sleep. For one, how much sleep a person should get? According to our text book people should sleep for at least eight hours to maintain sound mental and physical health. But every one doesn’t get the chance to slee p for that amount of time. There is no normal amount of time you should sleep. Everyone is not the same. For one I might sleep for five hours and feel refreshed enough to work another shift. Other hand my cousin might need more then eight hours of sleep to feel refreshed. Another myth is that you can learn complicated things, like a new language, while you are sleep. Personally no, because the only way you can learn something is to be awake. When a person fall to sleep while listening to a cd player or tape player while they are sleeping they are not going to hear what is said when they are in a deep sleep.

Tb leadership

Many leaders forget that business is about values, not Just economic performance. Moral leadership doesn't mean ignoring profit and loss, stock price, production costs, and other hard measurable facts. But it does require recognizing the Importance of moral values, human meaning, quality, and higher purpose. Despite the corporate realities of greed, competition, and the drive to achieve goals and profits, leaders can act from moral values and encourage others to develop and use moral values In the workplace. 0 2. How does a leader find the courage to step through fear and confusion, to act despite the risks Involved? All of us have the potential to live and act courageously, If we can push through our own fears. Most of us have learned fears that limit our comfort zones and stand in the way of being our best and accomplishing our goals. We have been conditioned to follow the rules, not rock the boat, to go along with things we feel are wrong so others will like and accept us.There ar e a number of ways people can unlock the courage thin themselves, including committing to causes they believe in, connecting with others, welcoming failure as a natural and beneficial part of life, and harnessing anger. 180-185 3. What is the concept of servant leadership described by Robert Greengage? According to Greengage, servant leaders: 1) put service before self-interest; 2) listen first to affirm others; 3) inspire trust by being trustworthy; and 4) nourish others and help them become whole. Servant leaders truly value and respect others as human beings, not as objects of labor.

Cloning The Future Of Medicine And The Curing Of Diseases

Cloning By: Joshua Weidner Cloning: is it the future of medicine and the curing of diseases or is it the beginning of an unholy tragedy? Cloning needs to be looked into for the fact it could help save many people s lives. Before I decided to study the subject I had no idea how much cloning could help us as the human race. Cloning is a very promising field of study and could hold the key to the future of what it means to be human. Almost everyone has come to believe that the first animal to be cloned was Dolly the sheep but this is not entirely true. The first animal to be â€Å"cloned† was a sea urchin back in the year 1885. This is over 100 years before Dolly the sheep came to be. Technically, the sea urchin was not cloned but the embryos were separated. This proved that each embryo had its own set of genetic material that was capable of creating an entirely new organism that is identical to the last. (The History of Cloning). The man who performed the experiment of separating embryos was named Hans Adolf Edward Dreisch. After this experiment had been successful in the year 1902 another scientist by the name of Hans Spemann attempted to separate embryos in a more complex animal. He did so using a salamander as a test subject. Due to the complexity of the animal Hans figured out that in certain animals the embryo could only be split at a certain stage of development. (history of cloning learn.genetics. utah). Briggs and King were the first scientists to successfully do aShow MoreRelatedGenetic Engineering And Its Effects1592 Words   |  7 PagesA future with no more disease, no more limitations to what we can or cannot do, the making of a superhuman, playing God. Scientists can now make humans better than ever by improving their bodies by changing the cells in your body. Genetic engineering can also prevent long-time diseases from continuing in a family and help treat many illnesses. Though it can help many issues, it brings up many problems if used improperly and often abused. Genetic engineering harbors more moral and ethical issues thanRead MoreCloning And Its Implications On Human Cloning1497 Words   |  6 PagesCloning and Its Sociobiological Implications Picture this: walking down a street and seeing someone who looks exactly like you. They do the same things as you, act the same way you do, and are exactly alike in several ways. But have people ever considered the consequences of human cloning if it becomes permitted? Human cloning might seem like something out of a science-fiction novel, but it may someday be possible with advances in science and technology. This will result in the creation of severalRead MoreEssay Problems with Embryonic Stem-Cell Research1416 Words   |  6 Pagesembryonic stem cell research has become a popular topic and has been the subject for many heated debates. 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In the field of medicine the need for transplants far outways the supply. â€Å"It was hypothesized that if adult stem cells [somatic stem cells] from a specific organ could be collected and multiplied, it might be possible to use the resultant cells to replace a diseased organ