quotingThe Ancient Tool Used in Japan to Strengthen Memory & Focus: The Abacus
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https://www.openculture.com/2026/01/the-ancient-tool-used-in-japan-to-strengthen-memory-focus-the-abacus.html
Connie on Nostr: “…abacus training enhances cognitive function by sharpening concentration, ...
“…abacus training enhances cognitive function by sharpening concentration, accelerating information processing, and strengthening visual memory, leading to improved memory and sustained focus.”