... develops and those with Alzheimer's may get lost in their own street. Problems with language may also prevent coherent conversations. The affected person may not speak grammatically correct and talk in a child-like manner. They may substitute forgotten words for vague descriptions or make up new words. The simple understanding and judgement of sufferers becomes impaired and they can make the wrong choices. For example, wearing warm clothes on a hot day, wearing Bermuda shorts on a winter's day or waking up at awkward hours to do household tasks. The mathematical knowledge the people with Alzheimer's have deteriorates. They do not understand what the numbers are for and how to manipulate them. Tasks like managing finances become impossible. Rapid and dramatic mood swings are also a common occurrence. A person may change from anger to tears to glee to disappointment in a short while. This seriously affects the person's personality ...

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