Materia mercantil
Although the course of Alzheimer's disease is unique for everyindividual, there are many common symptoms. The earliest observable symptoms are often mistakenly thought to be 'age-related' concerns, or manifestations of stress. In the early stages, the mostcommon symptom is inability to acquire new memories, observed as difficulty in recalling recently observed events. When AD is suspected, the diagnosis is usually confirmed with behavioural assessments andcognitive tests, often followed by a brain scan if available.
As the disease advances, symptoms include confusion, irritability and aggression, mood swings, language breakdown, long-term memoryloss, and the general withdrawal of the sufferer as the senses decline. Gradually, bodily functions are lost, ultimately leading to death. Individual prognosis is difficult to assess, as the duration ofthe disease varies. AD develops for an indeterminate period of time before becoming fully apparent, and it can progress undiagnosed for years. The mean life expectancy following diagnosis isapproximately seven years. Fewer than three percent of individuals live more than fourteen years after diagnosis.
The cause and progression of Alzheimer's disease are not well understood. Research...
Regístrate para leer el documento completo.