| An Introduction to Age-Related Memory Loss |
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Memory refers to all that you remember as well as your capacity for remembering.
There are two kinds of memory: |
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Short-term memories are information you need to remember only in the next few minutes, like someone’s phone number, until you write it down in your address book.
The average person can hold only about seven unrelated pieces of information at one time. That's why it's easier to remember a seven-digit phone number than your longer identification number!
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Long-term memories involve information and experiences that hold more meaning for you, like a childhood memory or information you need to do important tasks like driving or operating equipment. |
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As you grow older, you may notice yourself becoming more forgetful. This is normal. Most people aged 50 years old and above have more difficulty remembering names, appointments and other details.
Fortunately, small memory lapses that occur with age are usually caused by normal changes in the brain’s structure and functions. They are seldom serious enough to disrupt your work or daily life. |
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Causes
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| Several factors affect the ability of an ageing brain to keep and retrieve memories: |
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The hippocampus, the part of the brain that forms new memories, tends to deteriorate with age. |
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Loss of brain cells affects the activity of brain chemicals called neurotransmitters. |
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There is decreased flow of blood and nutrients to the brain. |
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Don’t worry however. Even with these changes, you can still remember new information or learn new things. The process just takes a little longer. |
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The difference between
Age-Related Memory Loss and Alzheimer's disease |
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In age-related memory loss, you forget only minor things, like where you put your keys. People with Alzheimer's experience persistent forgetfulness that interferes with their duties at work or at home. |
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Alzheimer's is not a normal part of ageing. It is believed to be caused by the accumulation of amyloid, a sticky protein, which forms plaques that cause brain cells to deteriorate and die. |
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In addition to memory loss, the first signs of Alzheimer's often include difficulty speaking or understanding, and trouble doing routine activities, such as driving and shopping. |
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Mood swings, as well as aggression, agitation and delusions, may also occur with Alzheimer’s. |
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As Alzheimer’s progresses, long-term memory may also be affected. |
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