Alzheimer’s disease has become a serious brain disease that is rapidly increasing. It contains many symptoms that are threatening as its main symptom is loss of memory and severe damage. Not to mention the other symptoms such as deficits in speaking and understanding language, impaired movement, altered personality, and later on more serious symptoms like confusion, mood swings, depression, delusions, and hallucinations. Alzheimer’s disease should be a concern to everyone since it takes place on people at the age of 65 by 10% of the population, among 30% to 50% above the age of 70, and beyond 50% by the age of 80. …show more content…
In a research done by Salthouse and Becker, in 1998, it was found that AD was mostly a disorder of episodic memory. Semantic memory, which is the memory of general knowledge about the world, concepts, and language, is also affected as Hodges et al., in 1994, found a solid failure in semantic memory after measuring on AD patients. Procedural memory, which is the memory of how to do things like playing a piano, is the least affected as AD patients recall their knowledge of motor and cognitive skills, and as founded by Ilse et al., in 2007, they have the ability to learn new skills for a short amount of