Parkinsons Disease essays

Parkinsons Disease essays Parkinsons disease usually affects people of late middle age. Most run between the age of 50-60. The symptoms of Parkinsons disease are usually subtle and occur gradually. Some examples of symptoms a person may have, are feeling shaky or having trouble getting up from a chair or a couch. Others may notice that their speaking is softer or quieter. They will lose track of a thought or feel irritable or even depressed for no reason. These are early symptoms that may last a long time before the more classic and obvious symptoms appear. For now there is no way to cure or prevent Parkinsons disease from happening., but there has been new research looking at (PET) Position Emission Topography. This will allow scientists to scan the brain, which see chemical change that occurs in the brain. Using PET scientists can study the brains nerve cells that are affected by disease. IF you are in the major stages of Parkinsons disease the major symptoms are tremors, problems walking, bradykinesia, and rigidity. Rigidity is an increase of stiffness in the muscles. If it is eased by medications, rigidity is always present. Its also responsible for a mask like expression. In some patients it leads to sensations of pain in the arms and shoulders. Secondly, victims with experience bradykinesia, which means slowness of movement. It causes the brains to react slower in its transmission of instructions to parts of the body therefore causing the body to act slowly in carrying them out. Poor balance is often true when victims move abruptly. Some patients experience falls due to poor balance. Last are tremors, they will affect three out of four patients. Tremors may affect only one part or side of the body. For the most part they dont disable people and it disappears during sleep. Some minor symptoms are depression, emotional changes, me ...

The Enlightened Machine Brain Science essays

The Enlightened Machine Brain Science essays Brain Science, also known as nerve science, has been classified as an adventure. It mostly deals with our behavior, as well as speech, movement, coordination, and basically any part of our life in general is associated with it. As we study the brain more and more over the last twenty years, we begin to discover more and more about it and its hundreds of thousands of complex and involved tasks. Let us start with the basics, the brain from the out side is about 3 pounds of tissue. It contains two main hemispheres, and is filled with a liquid known as cerebral spinal fluid, or CSF. Our brain has been compared to many different inventions over the past few centuries. As far back as the seventeenth century, our brain was compared to a water pump, thus being called the main "pump" of our body. Then, during the industrial revolution, it was contrasted to the Great Telegraph. And later on to the circuit board of a telephone that was invented by Alexander Bell. And now, it is being as sociated with the motherboard of a computer. Over all, our brain can be compared to a racing team; every member of it has a small job, but it is a very important one. Our brain does not function as only one part, every part is constantly being active with all the other parts. Now the inside of our brain is completely different. There are different sections for different areas of sensory activities, and different areas for motor tasks. Our memories and our intense emotions are generally considered to be part of the brain right above the brain stem. The back of our brain, or the occipital region, mostly interprets our vision, or in other words it processes what our eyes have seen into impulses. The frontal lobe part of our brain deals with most of our thinking, but a lot of our strategies and complex thoughts occur there. There are two ribbon like parts of our brain, both of which go down vertically from superior and inferior portions. The more p...