Cognitive Speed Training Linked to Long-Term Brain Health Benefits

Written by: Stephanie Beebe
Updated: 02/25/2026
Published: 02/25/2026

A Johns Hopkins University article highlights new research showing that a specific form of computer-based cognitive training may help support long-term brain health and delay the onset of dementia. The training focuses on improving how quickly individuals process visual information while managing divided attention tasks, helping the brain respond more efficiently to everyday situations.

The findings come from a large, long-term study that followed older adults for nearly two decades after they completed structured cognitive training sessions. Researchers compared different types of mental training—including memory, reasoning, and processing-speed exercises—and found that speed-of-processing training was the only approach associated with fewer dementia diagnoses years later. Participants completed several weeks of guided computer exercises designed to gradually increase mental challenge and reaction speed.

Scientists believe this type of training strengthens automatic thinking skills that support activities such as driving, decision-making, and attention management. While experts emphasize that brain training is not a standalone prevention strategy, the research suggests that targeted cognitive exercises—combined with physical activity, social engagement, and healthy lifestyle habits—may contribute to healthier cognitive aging.

Source: Cognitive Speed Training Linked to Lower Dementia Incidence Up to 20 Years Later (Johns Hopkins University)