Mind is a leading mental health charity in England and Wales and has produced information on many areas of mental health. This factsheet is about the different causes of confusion and dementia, and the states of mental and emotional distress that can be mistaken for dementia. It is intended for carers, professionals, students, and anyone with an interest in dementia and related conditions. This factsheet does not give comprehensive information on mental and emotional distress in older people. Further information is contained in the factsheet 'Older people and mental health', which can also be found in the Learning Exchange.