By Sid Kirchheimer
WebMD Medical News
June 18, 2003 – When it comes to preventing Alzheimer’s disease and other forms of dementia, seniors may actually fare better with several laps around a Monopoly board than around the block. A new study in this week’s New England Journal of Medicine adds to mounting evidence that mentally stimulating activities such as reading, playing cards and board games, and doing crossword puzzles may prevent or minimize memory loss from aging. But this time, researchers also compared these brain-boosting hobbies to more physical activities in 469 seniors.
The role of regular exercise in Alzheimer’s prevention has been questionable. Some studies suggest it mildly reduces risk, likely because exercise improves blood flow and aids in brain cell development. But other studies, like Verghese’s, show no significant benefit in Alzheimer’s prevention from activities such as walking, swimming, climbing stairs, and housework.
Verghese’s study, which lasted 21 years and is the longest to date, is at least the fourth since 1995 to suggest a strong benefit from more sedentary but cerebral leisure activities – likely because of what researchers call the “cognitive reserve theory.”
Buffer Your Brain
“The theory is that by engaging in mentally stimulating activities, you’re building a buffer against disease,” he tells WebMD. “Basically, you’re exercising your brain to keep it strong and make it more resistant to Alzheimer’s and other illness. I strongly recommend that elderly individuals engage in [brain] stimulating activities like chess, board games, playing a instrument, or puzzles. And the more often they do, the better.”
Overall, his study participants who read, did puzzles, or played cards, games, or instruments about four days a week were two-thirds less likely to get Alzheimer’s compared with those who did these activities once a week or less. All were age 75 or older and had no symptoms of dementia when the study began.
Gratifying Findings
Says Robert S. Wilson, PhD, of the Rush Alzheimer’s Disease Center in Chicago, “…these mentally stimulating activities can help. Even if they can delay Alzheimer’s for a few months or possibly several years, that can have a tremendous public health impact.”