Some studies have found that Alzheimer’s disease occurs more often among people who suffered significant traumatic head injuries earlier in life, particularly among those with the apoE 4 gene.
Mõned uuringud on leidnud, et Alzheimeri tõbi esineb sagedamini inimeste hulgas, kes kannatasid märkimisväärset traumaatiline peavigastuste varem elus, Eriti seas apoE 4 geen.