The most common brain diseases

There are several diseases affecting the brain and mental health, the most common of which are as follows:

Alzheimer ‘s

Alzheimer’s disease is the most common cause of dementia in humans. It was originally described by a German physician, Alois Alzheimer in 1906. Alzheimer’s is a neurodegenerative disease that is intended to be a progressive loss of incurable neurons in brain tissue resulting in the progressive and irreversible loss of mental functions, including memory. The first symptom is manifested first by minor distractions such as the loss of memories of recent events. At the beginning of the disease, however, older memories are relatively preserved. The neurological damage then spreads and then appears more severe disorders resulting in confusion, irritability and aggressiveness. It will also gradually affect executive functions and language as well as long-term memory. The destruction of neurons continues until the loss of autonomous functions and ends with death.


Strokes are caused by an interruption in the supply of blood to the brain or a cerebral hemorrhage related to bleeding from the brain.


Dementia may be linked to a degeneration of certain brain structures as is the case of Alzheimer’s disease caused by deposits of beta-amyloid proteins on nerve structures and the presence of entangled filaments in nerve cells.


Epilepsy causes involuntary movements such as tremors and bites of the tongue and impaired consciousness up to loss of consciousness. Epilepsy produces in the patient an involuntary and random excitation of brain activity.

Parkinson’s disease

The Parkinson’s disease is linked to a degeneration of a part of the brain that has the effect of depriving the basal ganglia of dopamine. The control of movement is no longer provided by the gray nuclei and this is what explains the main symptoms of this disease such as: speech problems, gait disorders, speech problems, performing mechanical and simple tasks, etc.

Multiple sclerosis

Multiple sclerosis can affect the entire nervous system by creating sensory (vision) disorders and motor disorders such as paralysis, difficulty walking and also speaking.

Multiple sclerosis is a disease of the myelin sheaths that surround and protect nerve fibers.


Schizophrenia is defined as a loss of contact with reality created by defects in certain neural circuits in the brain.


References: Health Passport – Wikipedia



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