text: Yo, Alzheimer's disease, it's a cognitive disorder
  But hold up, there's more, let me bring the order
  Behavioral and psychological symptoms, they be lurking
  From the start to all stages, patients be hurting
  
  Gotta identify 'em early, that's the key
  They guide the diagnosis, help us see
  Affective and emotional disorders in the mix
  Delusions and hallucinations, they be playing tricks
  
  Instinctual behavior, it's all out of whack
  Behavior problems, yo, we gotta track
  Neuropsychiatric Inventory, the tool we use
  To assess these symptoms, no time to lose
  
  Neurobiological aspects, they're often there
  But sometimes, other causes we gotta be aware
  Somatic, iatrogenic, psychological, environmental
  Different roots, but they're all influential
  
  They impact the disease, they control the course
  Suffering and reduced quality of life, it's the source
  Caregivers feel distress, it's a heavy load
  Hospitalization, institutionalization, costs explode
  
  So the challenge is clear, we gotta strive
  Learn more about these symptoms, keep 'em alive
  Improve the treatment, prevention in sight
  Let's fight Alzheimer's with all our might