What was dario study problem in grandma?

In the story "Grandma," Dario faces the challenge of understanding and coping with his grandmother's declining mental health and the changes in her behavior. He struggles with feelings of helplessness and frustration as he attempts to connect with her, grappling with the emotional impact of her condition on their relationship. This situation forces Dario to confront complex themes of aging, memory, and the bonds of family.