Alzheimer's is the most common form of dementia. It is a common term for memory loss and other cognitive losses serious enough to interfere with daily life. Dementia is the "umbrella term" and there are hundreds of types of dementia but 60-80% of dementia cases are categorized as Alzheimer's.
Alzheimer's disease is now called stage 3 diabetes because it is brought on by insulin resistance and insulin like growth factor dysfunctions in the brain. This is a new finding in scientific studies. It is well understood from very conclusive reseach, that Alzheimer's is a form of diabetes that selectively tagets the brain.
There are 7 stages of this disease and they worsen over time, but Alzheimer's disease is usually categorized as mild, moderate and severe.
Signs and symptoms include memory loss, confusion with time or place, poor judgement, withdrawn from work or social activities and changes in mood and personality. There is continued research on Alzheimer's but there is no cure at the moment. However, decline may be slowed through lifestyle changes in diet...the Mediterraneanean diet, Dash diet and Mind diet are all recommended.