Key Takeaways

Being physically active helped slow older adults' memory loss, even when they already had early brain changes linked to Alzheimer’s

The most benefit was linked to 5,000 to 7,500 steps a day

Exercise was tied to slower buildup of tau, a key protein linked to memory loss

TUESDAY, Nov. 4, 2025 (HealthDay News) — Getting in more daily steps may help slow early brain changes linked to Alzheimer’s disease , a new long-term study suggests.

Researchers followed nearly 300 older adults for up to 14 years and found that people who already showed high levels of beta-amyloid (an early sign of Alzheimer’s) lost memory and thinking skills more slowly if they were physically active.

Even a low or moderate amount of daily movement made a difference, the study said.

In fact, adults w

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