The cause is currently unknown. In families where Alzheimer's occurs in several generations, genetic causes are suspected. In a very small number of these families, gene mutations have been found. For the large majority of families with a history of Alzheimer's disease, however, the genetic causes have yet to be determined. Research to date is inconclusive as to the effects of these conditions.
Some dementias do have cures.
Alzheimer's dementia does not. However, there is both medical and non-medical treatment available to help manage symptoms. Medical treatment can include medications that may help improve symptoms. Non-medical treatment may help the patient become more adjusted to the limitations of the disease. It may also help caregivers manage the sometimes bizarre and difficult behavior patients exhibit.