Yes, dogs can get dementia, known as Canine Cognitive Dysfunction (CCD) or Cognitive Dysfunction Syndrome (CDS). It is similar to Alzheimer's disease in humans and causes gradual brain deterioration affecting memory, learning, behavior, and spatial awareness. The chance of developing dementia increases with age; about 28% of dogs aged 11-12 years and 68% of dogs aged 15-16 years show signs of this condition. Common symptoms include confusion, disorientation, restlessness, changes in sleep patterns, loss of house training, increased anxiety, irritability, and changes in social interactions. Although there is no cure, management through veterinary care, nutritional, medical, and behavioral support can help improve quality of life for affected dogs.