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Copyright © 2008
SharpBrains
This is a question we often get asked in our classes and lectures.
The quick answer is that while recreational activities like crossword puzzles, sudoku, bridge, chess, poker, etc. are all good for you and better than doing nothing, they are usually limited in their range of mental cross-training as well as difficult to control to ensure the right combination of both challenge and novelty.
If you do them often, what you're doing is fun and can't hurt. But it may not be complete. Recent recommendations made by a panel of experts reviewing a poll by the American Society on Aging stated "A single activity, no matter how challenging, is not sufficient to sustain the kind of mental acuity that virtually everyone can achieve."
Using your brain to solve creative challenges is excellent practice and will help slow down the effects of aging. The limitation with your current brain workout program is that it does not have enough variety or novelty to work out all your mental muscles. Have you ever seen the guys in the gym with the buff upper bodies supported by little chicken legs? The same thing can happen in your brain. Just as you cross-train in your physical fitness routine (mixing cardio with strength training and flexibility) to get a balanced workout, you need to cross-train your mental fitness to exercise your brain through motor coordination, emotional understanding, memory, focus and attention, sensory processes, communication, language skills, and mental visualization.
Furthermore, how can you gauge your improvement if you don't have a way to measure it? Using computer software to give you a baseline score, workout routines for your brain, and follow up tests gives you a measure of your improvement. So basically, right now you may be doing a highly focused workout using language and memory but with inconsistent challenge and limited feedback. A structured program should give you assessment, novelty, and performance-based challenge while still being fun. That extra mental stimulation can increase the rate of neurogenesis, or the creation of new neurons and the connections between neurons.
A randomized controlled double-blind study published in August 2006 "demonstrates that intensive, plasticity-engaging training can result in an enhancement of cognitive function in normal mature adults." Challenging cognitive function leads to learning and neurogenesis. So keep doing crosswords and sudoku, especially if you enjoy them, but don't neglect the rest of your brain!
Conclusion: Do activities you enjoy, but be sure to do things that challenge you with new and different types of stimulation.
Further Reading
- Gamon D. and Bragdon A. Building Mental Muscle: Conditioning Exercises for the Six Intelligence Zones (Walker & Company; 2003). ISBN: 0802776698
- Mahncke HW, Connor BB, Appelman J, et al. Memory enhancement in healthy older adults using a brain plasticity-based training program: a randomized, controlled study. Proc Natl Acad Sci USA. 2006;103:12523-8.
- Scarmeas N, Stern Y. Cognitive reserve and lifestyle. J Clin Exp Neuropsychol. 2003;25:625-33.
- Willis SL, Tennstedt SL, Marsiske M, et al. Long-term effects of cognitive training on everyday functional outcomes in older adults. JAMA. 2006;296:2805-14.
Alvaro Fernandez is the CEO and Co-Founder of SharpBrains.com, which combines the latest science-based information for Brain Training with fun Brain Teasers, and has been recognized by Scientific American Mind, MarketWatch, Forbes, and more. Alvaro holds MA in Education and MBA from Stanford University, and teaches The Science of Brain Health at UC-Berkeley Lifelong Learning Institute. You can learn more at http://www.sharpbrains.com/
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