Medically reviewed by Steven Gans, MD Delirium is a sudden change in how a person thinks, making them feel confused or ...

It can be harder for a health professional who is seeing them for the first time. There are three main types of delirium: hyperactive (too active), hypoactive (not active enough) and mixed, where a ...

Delirium is a sudden change in a person’s mental state. It is a serious condition that is sometimes mistaken for dementia or, more rarely, depression. Unlike dementia, delirium develops quickly and is ...