What kind of condition is dementia?

Progressive: Dementia is a progressive illness of the brain effecting one's memory, concentration, and planning (abstract thinking). Progressive means that the illness gets worse over time and there is no treatment to reverse the illness although some medications may slow the progression. Early stages are sometimes hard to find. A montreal cognitive assessment may be useful (http://www.Mocatest.Org/).

Neurological: Dementia is a clinical term that means a progressive impairment of thinking abilities (often but not always memory) that interferes with the person's abilities to perform their usual daily activities. Many types of disorders can cause dementia. Some, such as low thyroid, low vitamin B12 or severe depression are treatable. Others such as alzheimer's disease have some treatments but cannot be cured.

Chronic: Depending on the cause, dementia is a chronic and can be progressive ilness. It can also progess in a step wise fashion.