My gran has dementia can u tell me more about it please?

It's a big challenge: You need to know what type and how progressed it is to say much more than i said. Gran's age, what type and how much has changed is so important. If it is mild, but alzheimer's type it may take years, but unless things change in medicine, it will get worse until death. If it is vascular, she may not get worse if there are no further incidents - there usually are. Be gentle and patient. Get help.

Online: There is good information online at the national institutes on aging, the alzheimer's foundation of america and the alzheimer's association.