CAE Use of English Part 2: Open Cloze 7

Memory lapse or dementia?

Read the text below and think of the word which best fits each gap. Use only one word in each gap.
Then press "Check" to check your answers. You can click on the "HINT" button to get a clue. Note that you will lose points if you ask for hints or clues!
It's a horribly disconcerting experience - groping to (0) REMEMBER your best friend's name, forgetting an arrangement that you made only yesterday or realising that your pin number has vanished into a memory black hole. These 'senior moments' affect us all at times, but when do brief memory lapses or moments of confusion become something you (1) to worry about? The fear that you might, literally, be losing your mind, is one that can be very real, (2) if you've seen a parent or relative develop Alzheimer's. Dementia affects around 750,000 people in the UK, and although there are 100 different forms of it, Alzheimer's is the (3) common. This disease destroys brain cells and as the structure and chemistry of the brain become increasingly damaged, the person's ability to remember, understand and communicate gradually declines. lt's a particularly cruel disease because it robs us of the memories that make us (4) we are, define our experience and provide us with the means to communicate with other people.
Although lots of us experience memory problems at some time, in most (5) these have (6) to do with dementia. lt's important to put the risk into perspective. The reality is that, although it does happen, dementia is unusual under the age of 65. For the majority of people memory lapses will be nothing (7) than occasional blips. lt is important to realise that your memory slows down a bit as you age, but this is a very gradual decline, quite different from the more dramatic deterioration that happens with Alzheimer's. The most common early sign of a problem is forgetting recently learned information.
(8) it's normal to forget appointments and telephone numbers occasionally, people with early dementia tend to forget more frequently and they also forget the same information again later.