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¡¡¡¡Àý£ºIt is observed that although our knowledge greatly exceeds that of our previous ages, there is no corresponding increasing in our wisdom.
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¡¡¡¡Àý£ºWhen people are mentally engaged, great chemical changes would take place in some cognitive areas.
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¡¡¡¡Àý£ºIt is established that when people are mentally engaged, great chemical changes will take place in such cognitive areas as memory and focus ability.
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