When the organ in our body is deprived of oxygenated blood that organ or part of it will die. This is exactly what happens in vascular dementia. The conditions which can cause these problems are preventable and include diabetes, heart problems, high blood pressure and cholesterol. Rarer forms of dementia are: • Creutzfeldt-Jakob disease known as CJD is caused by prion disease. Prions are proteins in body and when these protein cluster together in the brain they cause brain cells to die
Multiple sclerosis Multiple sclerosis This booklet includes- The symptoms of Multiple Sclerosis The impact of Multiple Sclerosis The signs of Multiple Sclerosis What is multiple Sclerosis? Multiple Sclerosis is a disease that affects the brain and the spine, eventually it ends in not being able to control muscles, loss of vision, not being able to balance, and numbness. When you suffer from multiple sclerosis the brain and spine are damaged by the immune system, this is known as an autoimmune disease. The symptoms- The symptoms affect every person differently, they vary on how much damage has been done to the nerves. Some symptoms include: -visual Problems: the visual problems are one of the first to occur normally.
Multiple Sclerosis Multiple Sclerosis is an autoimmune disease, often a disabling disease that attacks the central nervous system which is made up of the brain, spinal cord, and the optic nerves (“Multiple Sclerosis”). The body’s own defense system attacks myelin, the fatty substance that surrounds and protects the nerve fibers in the central nervous system. The nerve fibers themselves can also be damaged. The damaged myelin forms scar tissue (sclerosis), which gives the disease its name. When any part of the myelin sheath or nerve fiber is damaged or destroyed, nerve impulses traveling to and from the brain and spinal cord are distorted or interrupted, producing the variety of symptoms that can occur.
In MS the immune system mistakes myelin as a foreign body and attacks it, this damages it and strips it off the nerve fibre leaving scars known as lesions or plaques. By the myelin being damaged messages are disrupted, they can slow down, be distorted or not get through at all. As
Epilepsy In this report I plan to give a general overview of what epilepsy is. I will try to give examples and types of seizures, treatments, and in general some insight into the whole subject matter. Many people regard epileptic seizures as a disease while, in fact, they are not. A disease rather is more an illness, which tends to imply sickness and being in poor health. Since epilepsy certainly is not that I don t think it has any reference or relativity to the term disease .
9/24/14 Sean Howard Ap Pysch Current Event The article that I chose for the current event is about Alzheimer’s disease and how it sets in and what it does in the body. Alzheimer’s disease is a disease that damages and affects the neurons that lead up into the hippocampus and other parts of the brain. Alzheimer’s has two main causes; the first one is where twisted nerve cell fibers slow down the message from the neurons to parts of the brain. The other cause of Alzheimer’s is where a sticky protein forms on the neurons and stops the flow of the message. This prohibits the neurons message from getting passed on, eventually stopping the hippocampus and memory parts of the brain because they are not receiving any signals.
These cells due to the uncontrolled growth become dysfunctional and cause a myriad of problems inside the body. There is no one definitive cause as to why these cells begin to divide uncontrollably or just are unable to kill themselves when they become dysfunctional, but there are many things that are considered carcinogens or a substance or situation which may lead to or be the cause of cancer. Carcinogens are anything that enters your body and can cause a change to the starting and stopping process of cellular division. Common examples of carcinogens are Formaldehyde, Asbestos, tobacco smoke, and even UV rays. These carcinogens can lead to many forms of cancer but the most common being lung cancer, colon cancer, prostate cancer in men, and breast cancer in women.
Some scientists suspect that infection by certain bacteria, such as strains of mycobacterium, may be the underlying cause. To date, there has been no convincing evidence that the disease is caused by infection. Crohn’s disease is not contagious, but you are more likely to be infected with this disease if you have relatives with a history of infection. Diet can affect the symptoms of Crohn’s disease, but it appears unlikely that diet is responsible for the onset of the disease. Currently, Crohn’s disease is believed to be related to abnormalities in the response of the body’s immune system, which is composed of cells and protein that normally protect the body from infections or other foreign invaders.
Neurons are the chief type of cell destroyed by Alzheimer’s. Signals that form memories and thoughts move through nerve cells as tiny electrical charges. Alzheimer’s disrupts the way that electrical charges travel through these nerves and because of this, memory and the thought process is damaged. Alzheimer’s leads to nerve cell death and tissue loss inside the
These plaques and tangles choke the nerve cells and prevent them from working properly. For reason not understood, these plaques and tangles take over healthy brain tissue, which devastates the area of the brain associated with intellectual function (Goldmann, 2010, pg 6). Today, as research on Alzheimer's disease progresses, scientists are describing other abnormal anatomical and chemical changes associated with the disease. These The dangers of Alzheimer’s disease and the signs to look for. 4 include nerve cell degeneration in the brain's nucleus and reduced levels of the neurotransmitter acetylcholine in the brains of Alzheimer's disease victims (Alzheimer’s Disease).