A cikin duniya mai saurin tafiya a yau, ba abin mamaki ba ne cewa mutane da yawa suna neman hanyoyin haɓaka aikin fahimi, inganta mayar da hankali, da haɓaka lafiyar kwakwalwa gabaɗaya. Yayin da bukatar nootropics da abubuwan haɓaka kwakwalwa ke ci gaba da ƙaruwa, fili ɗaya th ...
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