Complex sentence: It's a prevalent and serious health problem for accurately ill adults delirium can be defined as transient and etiological non specific organic mental syndrome characterized by reduced ability to focus, sustain or shift attention.
Split into simpler sentences: It's a prevalent and serious health problem for accutely ill adults. Delirium can be defined as transient and etiological non-specific organic mental syndrome characterized by reduced ability to focus, sustain or shift attention.