Oh Crap! Another possible medical problem

Just caught this from Florida Cracker:

A recent study by Northwestern University researchers revealed that men with a rare kind of dementia are more likely to have had a vasectomy than those who do not have cognitive problems. Called Primary Progressive Aphasia, or PPA, this dementia affects an individual's ability to express himself, impairing word recall and ability to understand words. The research was published in Cognitive and Behavioral Neurology.

I had a vasectomy about 30 years ago.

This could explain so much!