Dehydration is not just feeling thirsty, but a physical state that can lead to confusion, lethargy, and even irritability. These symptoms of dehydration can happen even in those who do not have dementia. Now, when these are experienced by those who already have cognitive difficulties that come with dementia, dehydration problems can add an extra layer of confusion.

People with dementia are also at higher risk of getting dehydrated. This is because they may be unable to communicate or recognise that they’re thirsty, or may forget to drink water. This can lead to more troubling symptoms like headaches, increased confusion, urinary tract infections and constipation.