Negative issues are usually associated with addiction. Drug abuse, excessive drinking, and even too much gambling are all negative activities that are highly addictive. But if there is one kind of addiction that is actually beneficial for adults and kids alike, it would be an addiction to sudoku puzzles. Researchers rank solving sudoku puzzles daily among the top ten non-traditional and alternative ways to boosts brain power.
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A Sudoku A Day Exercises The Brain
Manhardeep Singh 