Harvard Study Finds Daily Steps Help Brain

A Harvard study published in Nature Medicine shows walking over 3,000 steps daily may slow cognitive decline in older adults.

“The 14-year study suggests modest daily walking may slow tau buildup and cognitive decline in older adults with elevated amyloid.”

Study Tracks Step Counts Over 14 Years

Researchers examined 296 adults aged 50 to 90 using pedometers to sort them into four activity groups.

Step Counts Linked to Slower Cognitive Decline

Participants walking 3,001 to 5,000 steps daily had 40% less cognitive decline than those walking fewer steps.

Moderate Activity Shows Stronger Benefits

The moderate-activity group (5,001 to 7,500 steps) experienced 54% less cognitive decline than the inactive group.

Active Group Had 51% Less Decline

The active group (over 7,500 steps) experienced 51% less cognitive decline than the inactive group over nine years.

Thresholds for Cognitive Impairment

The inactive group reached cognitive impairment in about 6.5 years, while the moderate group reached it in 13.6 years.

Benefits Plateau at 5,000 Steps

The study found benefits for cognitive health leveled off at around 5,000 to 7,500 steps per day.