Is Dementia an Inevitable Part of Aging?

This blog post is another in the series inspired by the book, The Scientific American Brave New Brain.1 That book presents a table contrasting the way the brain once was regarded, the way it is presently regarded, and some conjectures about what tomorrow might hold. According to Brave New Brain in the past, Alzheimer’s Disease and loss of brain function were regarded as inevitable parts of aging. Although the awareness of the widespread plague of Alzheimer’s Disease is relatively knew, many if not most people regarded the loss of brain function as a normal part of aging. It was thought that just as the body wears out, the brain wears out.

According to Brave New Brain today it is believed that “active brains retain more function than inactive ones, even to some very elderly people.” Even as parts of the brain decline, the neuroplasticity of the brain results in the enlisting of other parts of the brain to compensate for this decline. The Healthymemory Blog post “HAROLD” discussed this compensation. An important part of the current belief is that active brains retain more function than inactive ones. That is, inactive brains do decline as a result of aging. So here the old belief maintains. If you are passive and mentally inactive you can expect to lose brain function. The brain is analogous to the body: use it or lose it.

According to Brave New Brain, in the future Alzheimer’s disease is reversible and curable in many cases. Let us hope that this is also true for other forms of senile dementia. The question is how far into the future will this be the case. Are all of us baby boomers safe. I’m afraid that already some of us baby boomers have succumbed. Will the tale end of the baby boomers be safe? Let’s hope that cures and effective treatments will be developed as soon as possible. Otherwise the effects will be truly devasting.

The good news is that we do have a fighting chance. Active brains retain more function than inactive ones. Although there is no absolute guarantee that an active brain will not succumb Alzheimer’s or some other form of dementia, but the odds of succumbing are decreased by staying mentally acted. Moreover, you have the option of increasing your mental activity. Even if a cure for dementia were found, and let us up that there will be a cure, keeping mentally active and growing cognitively are still worthy goals on their own. They should result in a richer, fuller life.

The Healthymemory Blog is devoted to promoting healthy mental activity. It has three themes. One is the provision of knowledge about how memory works and how it fails to work. And it offers remedies for these failures. The blog posts are found in the Memory: Theory and Data category. Another theme is the use of mnemonic techniques. These posts are found, appropriately enough, under the category of mnemonic techniques. These techniques not only provide a means of improving memory, but also provide exercise that keeps the brain active. It is recommended to start at the beginning, bottom of this category as techniques become more difficult as you advance upwards. The third theme is Transactive Memory. Blog posts under this category provide suggestions for using technology and other people not only to maintain cognitive health, but also to foster and extend cognitive growth well into old age.

1Horstman, J. (2010). San FranciscoJossey-Bass.

© Douglas Griffith and, 2010. Unauthorized use and/or duplication of this material without express and written permission from this blog’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Douglas Griffith and with appropriate and specific direction to the original content.

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