English: Fifteen billion people in the whole world suffer dementia which causes much forgetfulness in learning, and also about ten billion people get dementia every year (WHO).
Igbo: Mmadụ ijeri iri na ise n'ụwa nile gburugburu na aria ọria nsogbu ubụruisi nke na-ebute oke nchefu na nsogbu ọmụmụ ihe, tinyekwara ihe ruru mmadu ijeri iri na enweta oria a kwa afọ (WHO).