Discovered in 1906 by German psychiatrist and neurologist Alois Alzheimer, Alzheimer's disease is a so-called "neuro-degenerative" brain condition, that is to say that it causes a gradual disappearance of neurons. It is characterized by short-term memory problems because it is the neurons located in the region of the hippocampus, the seat of memory, which are the first to be affected.

Gradually, other areas of the brain are affected, resulting in the gradual disappearance of orientation capabilities in time and space, recognition of objects and people, use of language, reasoning, The patient gradually loses his cognitive faculties and his autonomy.
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