Lately there are a lot of impressive claims about the brain boosting powers of things like calisthenics, crosswords, and complicated software. Advancements in technology and neurosciences are fueling the phenomenon. We have better equipment for studying and measuring brain function and smart people devoting themselves to the research. Most of them admit that while we know a lot more than we did even a few years ago, what we know about the brain is still relatively little compared to what we don’t know.

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