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Preventing the Wrong Kind of Brain Plasticity, with Dr. Henry Mahncke

How your brain degrades its own processing over time — and what actually reverses it

Henry Mahncke, CEO of Posit Science, leads BrainHQ, a brain training platform with unmatched peer-reviewed backing. A neuroscientist who studied under brain plasticity pioneer Dr. Michael Merzenich, Henry transitioned from McKinsey to applying plasticity research to real-world health. We discussed the capabilities of brain training, common industry criticisms, and how to maintain lifelong brain health.

In this episode, we cover:

  • How Henry went from studying brain plasticity in rats in Merzenich’s lab to building BrainHQ

  • Why Posit Science now thinks of their work as brain training rather than cognitive training — and what that distinction means

  • How brain plasticity drives brain health

  • How BrainHQ exercises are designed to target information processing at the most fundamental level

  • The transfer debate: what their clinical trials actually showed (including a 20-year, $75 million NIH study on its impact on dementia risk)

  • Why crossword puzzles probably won’t protect you from Alzheimer’s, and what makes effective brain training different from cognitive stimulation

  • Brain training beyond the screen: racquet sports, musical instruments, foreign languages, and other real-world activities that drive the protective plasticity

  • Why we’ve accidentally squeezed skill learning out of education and daily life — and what that’s costing us

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