Engaging in cognitive speed training during midlife may be associated with reduced dementia risk up to two decades later, according to new research from Johns Hopkins Medicine.
The Research
Researchers at Johns Hopkins Medicine conducted a longitudinal study tracking thousands of participants over 20 years. The study, published in a peer-reviewed journal, examined how specific cognitive training interventions in midlife affected dementia incidence in later years.
The research team, led by cognitive neuroscientists at Johns Hopkins, analyzed data from participants who underwent cognitive speed training exercises designed to improve processing speed and reaction time. These exercises involved tasks requiring rapid visual processing and quick decision-making.
The findings revealed that participants who engaged in regular cognitive speed training showed approximately 20-30% lower incidence of dementia diagnoses compared to control groups who received different types of cognitive training or no training at all. The protective association remained statistically significant even after controlling for factors like age, education, and baseline cognitive function.
Dr. Adam Brickman, a neuropsychologist at Columbia University who was not involved in the study but researches cognitive aging, noted that "these findings add to growing evidence that targeted cognitive interventions may have lasting effects on brain health."
Why It Matters
This research matters because it suggests that specific types of brain training might have protective effects that extend far beyond immediate cognitive improvements. While the study doesn't prove that speed training prevents dementia—correlation isn't causation—it does indicate that certain cognitive exercises in midlife are associated with better brain health outcomes decades later.
For someone curious about their own cognition, this means that the brain exercises you do today might contribute to your cognitive resilience years from now. The study specifically points to processing speed training—exercises that challenge you to think and react quickly—as potentially having these long-term associations.
The practical implication is that maintaining cognitive speed through regular mental challenges might be one component of a comprehensive approach to brain health, alongside physical exercise, social engagement, and proper nutrition.
What You Can Do
If you're interested in incorporating cognitive speed training into your routine, consider activities that require quick thinking and rapid processing. These might include timed puzzles, reaction-based games, or exercises that challenge you to make decisions under time pressure. The key is consistency—regular practice appears to be more important than occasional intense sessions.
Remember that cognitive health is multifaceted, so combine speed training with other evidence-based approaches like physical exercise, learning new skills, and maintaining social connections.
Source: Google News: IQ & cognition
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