Grandiosity is a symptom experienced by people with bipolar disorder (BD) during manic and
What causes grandiosity?
Grandiose delusions usually occur in patients with syndromes associated with secondary mania, such as Huntington's disease, Parkinson's disease, and Wilson's disease. Secondary mania has also been caused by substances such as L-DOPA and isoniazid which modify the monoaminergic neurotransmitter function.
Is grandiosity a good thing?
“Grandiose narcissism appears to correlate positively with healthy self-esteem and extroversion,” Papageorgiou says. These types of narcissists tend to be very confident, which is a good thing. (A vulnerable narcissist, on the other hand, might be overly sensitive.)