what causes Alzheimer'swhat causes Alzheimer's

Expert Answers
pohnpei397 eNotes educator| Certified Educator

Scientists do not yet know what actually causes Alzheimer's.  They know what physical changes take place (things like the plaques that kill brain cells) but they do not know for sure why it happens.

Scientists believe that the disease is caused by a combination of factors.  They think that genetics is part of it, but not all.  There is some evidence to suggest that things like smoking, high blood pressure, and overall bad health can contribute to Alzheimer's but there is (according to the Mayo Clinic)

no lifestyle factor that's been conclusively shown to reduce your risk of Alzheimer's disease.

kavya--kammana | Student

Scientists still are not sure what causes the disease. Scientists explore role of genetics in causing Alzheimer's disease, but the majority agrees that the disease is caused by many factors.

Some of the damages of some certain areas of the brain are related to loss of chemical messengers of neurons (neurotransmitters) mainly acetylcholine, which is allowing neurons to function normally.
Some studies have suggested that zinc and aluminum would have a role in triggering the disease, but these theories were not supported by evidences.

Almost half of those over 85 years have Alzheimer's disease. A small percentage of those whose ages arebetween 30 and 40 years, present the signs of this disease.

the cause is degeneration of neurons in brain by accumulation of an insoluble protein in the brain.  we have it in our textbooks that this is the cause.

kavya--kammana | Student

ALZHEIMERS:-

  • Total memory loss
  • Due to degeneration of neurons in the brain by accumulation of insoluble protein in the brain
  • found in people above 60.
  • a complete remedy is not found yet.
giorgiana1976 | Student

Scientists still are not sure what causes the disease. Scientists explore role of genetics in causing Alzheimer's disease, but the majority agrees that the disease is caused by many factors.

Some of the damages of some certain areas of the brain are related to loss of chemical messengers of neurons (neurotransmitters) mainly acetylcholine, which is allowing neurons to function normally.
Some studies have suggested that zinc and aluminum would have a role in triggering the disease, but these theories were not supported by evidences.

Almost half of those over 85 years have Alzheimer's disease. A small percentage of those whose ages arebetween 30 and 40 years, present the signs of this disease.