12/02/2025
New research is changing how we think about brain health and dementia prevention, and the message is surprisingly encouraging.
Studies from Nature Medicine (2024) and The Lancet Public Health (2025) show that most of the cognitive benefits happen between 3000 and 7500 steps per day. Even small increases in daily movement can slow cognitive decline and reduce the accumulation of tau, a key marker of Alzheimer’s disease.
In fact:
• 3001–5000 steps was linked with 40 percent less cognitive decline
• 5001–7500 steps was linked with 54 percent less decline
• Benefits plateaued beyond ~7500 steps
This is powerful because it means the most protective habits are the most achievable ones.
A short morning walk.
An after-dinner loop around the block.
Walking while you chat with a friend.
Small, repeatable steps that support long-term brain health.
Consistency, not perfection, creates the biggest impact.
Start where you are today. Your brain will thank you.