A new study from Johns Hopkins University reveals that just five minutes of moderate to vigorous exercise each day can significantly lower the risk of dementia among older adults.
Published in the Journal of the American Medical Directors Association, the study found that individuals who engaged in at least 35 minutes of physical activity per week had a 41% lower risk of developing dementia compared to those who were inactive. Even frail seniors, who are more vulnerable to health issues, benefited from regular movement.
Lead researcher Amal Wanigatunga emphasized that even small amounts of exercise can be beneficial. “Our findings suggest that increasing physical activity, even as little as five minutes per day, can reduce dementia risk in older adults,” said Wanigatunga, an assistant professor at Johns Hopkins Bloomberg School of Public Health.
The study analyzed data from nearly 90,000 adults aged 50 and above in the UK. Results showed that individuals who exercised for 35 to 69 minutes per week had a 60% lower dementia risk, while those who exercised for over 140 minutes weekly saw a 69% reduction in risk.
Dementia, primarily caused by Alzheimer’s disease, affects millions worldwide. While aging is a key risk factor, research suggests that lifestyle changes—such as managing blood pressure, cholesterol, and blood sugar, along with staying active—can help lower the likelihood of developing the condition.
The World Health Organization recommends at least 150 minutes of moderate exercise per week, but this study highlights that even minimal physical activity can make a difference.
