Body's immune system attacking the myelin sheath of nerves in the central nervous system
Affects activities of the brain and spinal cord
Disturbs coordination between the central nervous system and peripheral nervous system
Memory cells degenerate and die progressively
Usually occur in senior citizen
Individual experienced brain injury
Genetic factor
Lifestyle
Memory loss
Loss of intellectual and social skills
Unable to take care of themselves
Less secretion of dopamine
Usually occur in senior citizens progressively
Usually occur in man
Shrinkage (tremor) of body
Movement becomes slow
Muscles become weak
Difficulty in balancing the body
Motor neurone degenerates and die
Age factor, between 40-60
Affects somatic nervous system
Skeletal muscle unable to function progressively
Finally, skeletal muscles for moving, ingesting, speaking and breathing are unable to function
Premature baby, before 37th week or underweight
A pregnant mother who smokes, alcoholic and drug abuse
Unable to pay attention, become hyperactive and easy to get bored
Stimulants drug:
Depressant drug:
Alcohol abuse:
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