Brain Science
The relationship between cognitive training and dementia prevention is complex and often misrepresented.
No brain training app prevents dementia. Let's start there. Any product that claims otherwise is either misleading or simply wrong - and those claims have gotten the industry into regulatory trouble for good reason.
But the honest research picture, stripped of the inflated marketing, is more interesting and more encouraging than the industry's credibility problems might suggest.
The most robust framework for understanding brain aging is the cognitive reserve hypothesis. The basic finding: people with higher cognitive reserve - built through education, intellectually demanding work, and sustained mental engagement - show later onset of dementia symptoms even when their brains show comparable levels of Alzheimer's pathology on autopsy.
This is a striking result. It suggests that the brain can compensate for physical damage using alternative neural pathways that have been built and maintained through years of cognitive engagement. You can have the same amount of Alzheimer's plaques and tangles as someone who develops symptoms in their 70s, and not develop symptoms yourself until your late 80s - the difference being a lifetime of cognitive engagement.
Cognitive reserve doesn't prevent the pathology. It delays when that pathology becomes functionally disabling.
The activities with the strongest evidence for building cognitive reserve are not simple - they're activities that are cognitively demanding in specific ways:
Watching television, even intellectually stimulating television, shows consistently weaker effects than active cognitive engagement. Reading shows stronger effects than TV, but weaker than activities that require generative thinking - solving problems, writing, playing strategy games.
The ACTIVE trial (Advanced Cognitive Training for Independent and Vital Elderly), the largest and most rigorous brain training study ever conducted, followed nearly 3,000 adults over ten years. Its finding for reasoning training (the type most similar to what MyRin offers): a 48% reduction in the risk of developing dementia over the ten-year follow-up period.
This is not a prevention claim - the people who developed dementia in the reasoning training group almost certainly would have developed it anyway, just later. But a 48% reduction in 10-year risk is a substantial effect by any measure, and it survived a decade of follow-up in a rigorous randomized trial.
The effect was specific to reasoning training. Memory training and processing speed training in the same study showed weaker or no effects on dementia outcomes.
When should you start? The cognitive reserve hypothesis suggests the answer is: as early as possible, and without ever stopping. Reserve builds throughout life. The benefits of starting at 30 versus 50 are real. But the benefits of starting at 50 are also real - and dramatically better than not starting.
The common framing - "I'll start worrying about brain health when I'm older" - misunderstands the biology. Cognitive reserve is built over decades, not months. The best time to start was earlier. The second best time is now.
MyRin is a logic and pattern puzzle game designed to provide sustained, genuinely challenging cognitive engagement of the type with the strongest research support. It is not a medical intervention. It will not prevent Alzheimer's. It cannot diagnose or treat any cognitive condition.
What it can do - and what the research supports - is contribute to building the cognitive reserve that delays when age-related cognitive decline becomes functionally limiting. That contribution is meaningful. It's just not magic.