American snuff is largely packaged in moist forms, in dissolvable strips or lozenges or tea bag kind of pouches. The consumer places a pouch or pinch of snuff behind the lips or between the gums and cheek. Moist snuff is also known by the name snus. Some consumers use dry snuff by inhaling it through the nose.
Delirium (sometimes called acute confusional state) and dementia are the most common causes of cognitive impairment, although affective disorders (eg, depression) can also disrupt cognition. Delirium and dementia are separate disorders but are sometimes difficult to distinguish. Delirium affects mainly attention. Dementia affects mainly memory. Delirium is typically caused by acute illness or drug toxicity (sometimes life threatening) and is often reversible. Dementia is typically caused by anatomic changes in the brain, has slower onset, and is generally irreversible.
Delirium often occurs with other diseases, such as dementia, stroke, Parkinson's disease, or depression. Alzheimerâs Disease and Other Types of Dementia Many older people develop a condition of slowly progressive cognitive or mental decline called dementia. Some of the causes of dementia in older people include: 1  Alzheimerâs disease. 2  Vascular dementia.