4. Mood Swings
Dementia can cause mood swings and irritability. This might cause short bouts of depression, during which a patient can struggle to find motivation or may become disinterested in activity. At the same time though, it can also result in a short temper, bouts of anger and frustration.
But this needn’t always mean a ‘negative’ personality change. In some cases, the change might seem positive even – perhaps if a normally shy individual suddenly becomes very outgoing and cheerful.
The warning sign here, as ever, is change.