One of the sad realities about Alzheimer’s disease is that there’s no way of preventing it – at least not yet. We know some people are genetically or biologically at greater risk than others, but researchers want to find out how we can fight it off, or at least delay it.
The strongest evidence for a lifestyle choice associated with Alzheimer’s prevention is exercise. A new study in the journal Neurology supports that, and also suggests that working out is more effective at protecting the brain than cognitive challenges such as games and puzzles.
Researchers studied a group of nearly 700 participants from Scotland, all born in 1936, who reported their leisure and physical activity levels at age 70. They rated physical activity on a scale from “moving only in connection with necessary (household) chores” to “keep-fit/heavy exercise or competitive sport several times per week,” the study said. Participants also rated how often they engaged in various social and intellectual activities.
Then, at age 73, the scientists used magnetic resonance imaging (MRI) to measure certain biomarkers in the brain among these participants.
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