Epilepsy can add to earlier cognitive decline
People with epilepsy who also had Alzheimer’s or amnestic mild cognitive impairment (aMCI) had 5.5 years to 6.8 years earlier cognitive decline than non-epileptics. In addition, people with Alzheimer’s and seizure disorders have more rapid progression of symptoms and more severe neuronal loss.
http://www.sciencedaily.com/releases/2013/07/130708161935.htm