What most people think of when they hear the word "dementia" is memory problems and forgetfulness. But what people often don't know is that dementia can cause many different symptoms – affecting speech, behaviour, sleep, motor function and more. In fact, dementia is an umbrella term. There are estimated to be more than 100 types of dementia . Alzheimer's disease is the most common subtype of dementia, affecting approximately 60% of all cases. Memory loss is one of the most common symptoms of