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Exercise and Brain Health

Posted by Chris Isidore on 02-11-2026

Healthy Life

Exercise is widely recognised for supporting physical health, but its benefits may extend to people living with neurological conditions. New research suggests that staying active could be associated with slower deterioration in both movement and thinking abilities among people with Parkinson's disease.

Published in Neurology in October 2026, the study followed almost 300 adults for up to seven years. Its findings offer an encouraging perspective on the potential value of maintaining an active lifestyle, although researchers caution that exercise has not been proven to slow the disease itself.

What The Researchers Discovered

Scientists led by Dong-Woo Ryu of the University of Cincinnati examined 294 people with mild to moderate Parkinson's disease. Participants were approximately 66 years old on average and completed annual assessments of their physical symptoms, memory and thinking skills.

Researchers also collected information about weekly activity, including exercise, household tasks and recreational movement. Participants were divided into three groups: those active for up to four hours weekly, those reporting four to eight hours, and those exceeding eight hours.

The aim was to investigate whether differences in activity levels were associated with changes in symptoms over time.

More Movement, Better Memory

One particularly interesting finding concerned cognitive performance. Scientists used a 30-point assessment to measure changes in memory and thinking.

Among the least active participants, scores declined by an estimated 0.478 points annually. The middle group experienced a smaller average decrease of 0.090 points, while those exercising for more than eight hours weekly showed a decline of just 0.007 points.

These results suggest that greater activity was associated with more stable cognitive performance. However, participants generally had relatively good cognitive abilities when the study began.

Physical Symptoms Also Changed

Researchers observed differences in movement-related symptoms, which can include stiffness, tremors and difficulties with coordination.

Using a clinical assessment in which higher scores indicate more severe symptoms, the least active group experienced a small average annual increase of 0.143 points.

By contrast, scores decreased by 0.225 points among moderately active participants and by 0.783 points among the most active.

The associations remained after researchers accounted for factors including age, gender and disease duration.

What Counts As Physical Activity?

The study considered more than conventional workouts. Moderate activities included brisk walking, leisurely swimming and household chores such as vacuuming or gardening.

More demanding activities included running, faster cycling and certain sports.

This broader definition is important because people with Parkinson's may have different physical abilities. Everyday movement can contribute to activity levels without requiring an intensive fitness programme.

Nevertheless, researchers did not establish that everyone should aim for eight hours of weekly exercise.

Why Further Research Matters

The study was observational, meaning it cannot prove that exercise caused slower symptom progression. People experiencing milder symptoms may simply have been better able to remain active.

Activity levels were also self-reported, which introduces possible inaccuracies.

Further controlled studies are necessary to determine whether particular activities directly influence disease progression.

A Practical Message For Patients

The findings highlight the potential importance of maintaining enjoyable, manageable physical activity over time. People with Parkinson's should discuss suitable exercise with their healthcare team, particularly when balance or mobility is affected.

Although exercise is not a cure, staying active may offer meaningful benefits for everyday functioning and wellbeing.