Alzheimer 's Disease : The Most Common Form Of Dementia Essay example

Alzheimer 's Disease : The Most Common Form Of Dementia Essay example

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ALZHEIMER 'S DISEASE

Alzheimer 's disease is the most common form of dementia, a general term for memory loss and other intellectual abilities that make it difficult to do daily tasks. 60%-80% of all dementia cases are Alzheimer 's. Although Alzheimer 's disease is not a normal part of aging, increasing age is the greatest known risk factor and the majority of people with Alzheimer 's disease are 65 years of age or older. 5% of Alzheimer 's patients have what is known as younger-onset Alzheimer 's, which often appears when the individual is in their 40s or 50s. Alzheimer 's disease is known as a progressive disease which means that the dementia symptoms gradually worsen overtime. Memory loss, confusion and language deterioration are common amongst Alzheimer’s disease patients. In the early stages of Alzheimer 's, symptoms are mild, but as it progresses, individuals can lose the ability to carry on a conversation and respond to their environment. Alzheimer 's disease is caused by death of nerve cells and loss of tissue in the brain.

Interesting Facts:
- Alzheimer 's disease is the 6th
leading cause of death in the
United States.
- Average lifespan of individuals
after symptoms become
noticeable is 8 yrs.
- Survival can range from 4-20
yrs. depending on the age and
health condition of the patient.




CAFFEINE

Caffeine is a stimulant of the central nervous system. Caffeine is a natural drug found in many coffee beans, tea leaves and cocoa nuts. Therefore it is found in many different food products including coffee, tea, pop and chocolate. Caffeine molecules are very similar to adenosine molecules found in the brain. Adenosine plays a big role in the body in the sleep-wake cycle, by signaling the brain when sleep ...


... middle of paper ...


...d axons) through which neurons receive and send signals through neurotransmitters. The death of neurons and glial cells and by destroying the connection between them, causes an effect on neuronal circuitry. Because the connection is damaged, no neurotransmitters are being emitted therefore synapse and action potential can not occur. This also may lead to an excessive number of neurotransmitters in the brain tissue, which may lead to overstimulating of neurons and may cause neuronal death. The brain then needs to try and limit the spread of damage by forming a glial scar to seal off damaged area. Glial cells are particularly important during this process, they produce glucose and other nutrients as well as support surviving cells. But with death of glial cells from the impact may make this process difficult and may lead to further spread of damage and further problems.

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