Alzheimer disease (AD) has been considered as “the Century’s disease”. According to the World Health Organization (WHO), there are 20 million people affected with AD all around the world. Moreover, it is estimated that this number can be trebled by 2040.
AD is a degenerative disease; it implies a progressive lost of nervous cells. At a neuropsychological level, it affects different cognitive processes as memory, language, praxis, gnosis and executive functions. Neurological testing, can report signs as frontal reflexes liberation, smell disorders, agraphestesia, walking disorders, shaking, extra pyramidal signs, cerebellum disorders and convulsions. Besides, emotional and behavioral symptoms – anxiety, acatysia, sleep disorders, delirium and depression- can be presented as well. It can be established that these symptoms make it more difficult to manage AD.