To Stay Sharper While Aging, Get Active, Challenge Your Brain, and Eat Healthy

By Lauran Neergaard
Edited by Andrew Zinin

Published on July 28, 2025

In recent studies, it has been confirmed that older Americans who are concerned about cognitive decline can enhance their mental acuity by engaging in physical exercise, challenging mental activities, and maintaining a healthier diet. Preliminary results from a rigorous U.S. study targeting lifestyle changes in senior participants at risk for dementia indicate that those who adopted these comprehensive habits demonstrated cognitive performance akin to individuals one to two years younger, as reported in the journal JAMA and presented at the Alzheimer's Association International Conference.

The Importance of Proactive Measures

Phyllis Jones, a participant from Aurora, Illinois, expressed a sentiment echoed by many in the study: "It was the first time I felt like I was doing something proactive to protect my brain." Jones joined the project motivated by personal experiences, having taken care of her mother diagnosed with dementia while struggling with her own health issues.

Current Research and Ongoing Analysis

While it is too early to definitively determine if delaying age-related cognitive decline could also lower the risk of developing Alzheimer's or various forms of dementia, study participants underwent brain scans and blood tests that are currently under analysis. Researchers are examining potential indicators that could reveal reductions in harmful Alzheimer's-related protein accumulations.

Physical Activity and Brain Health

Healthcare professionals have long endorsed the correlation between physical activity and brain fitness. Engaging in these habits can combat issues like high blood pressure, cholesterol, and diabetes—conditions leading to increased dementia risk. Until this comprehensive study, the strongest evidence supporting lifestyle changes for cognitive improvement derived from research conducted in Finland.

Study Structure and Methodology

With the support of the Alzheimer’s Association and the National Institute on Aging, researchers, led by Laura Baker from Wake Forest University School of Medicine, explored the effects of these lifestyle modifications over two years on 2,100 adults aged 60 to 79.

Participant Protocol

Half of the participants were randomly assigned to receive structured guidance on exercise, dietary changes, and mental challenges. They followed a comprehensive exercise schedule that included:

  • 30 minutes of moderately intense aerobic activity four times per week.
  • 10 to 15 minutes of stretching and 15 to 20 minutes of resistance training twice a week.

In addition, these participants adhered to the MIND diet, emphasizing leafy greens, berries, whole grains, poultry, and fish while advocating for the limitation of red meat and sweets. Participants were also encouraged to explore new social experiences or hobbies weekly, alongside engaging in cognitive exercises using the online Brain HQ program.

Study Results

Both the intervention and control groups demonstrated cognitive improvements; however, those enrolled in the structured program exhibited significantly greater benefits.

Key Findings

Aspect Intervention Group Control Group
Cognitive Performance Improvement 1-2 years younger in brain test scores Minimal improvement
Physical Health Improvement Increased heart health and fitness Stable health metrics
Emotional Well-being Significant positive impact Lesser emotional improvement

Strategies for Maintaining Healthy Habits

For those who aspire to incorporate cognitive and physical exercises independently, experts suggest starting slow. Moderately intense exercise should raise heart rates without causing excessive panting. Some accessible options for brain engagement include:

  • Puzzles and games
  • Joining a book club
  • Learning a new instrument or language

Participants like Jones have experienced notable changes, including a 30-pound weight loss, improved heart health, and increased cognitive sharpness—particularly in multitasking scenarios. Enrollment in virtual reality exercise programs has been a fun addition to her routine, allowing her to connect with others while staying active.

The Challenge of Sustaining Change

As monitoring continues over the next four years, researchers aim to implement community-focused programs based on these findings. Ensuring that participants maintain their beneficial habits poses a challenge, as evidenced by Jones's realization of slipping dietary standards post-study.

“The lifestyle change did not just affect me physically; it also impacted me mentally and emotionally, bringing me to a much better place.” – Phyllis Jones

Conclusion

The results of this research provide a roadmap for older adults seeking to enhance cognitive health. Combining movement, mental stimulation, and nutritious food will potentially slow the cognitive aging clock, promoting better overall health into older age. The evidence of these lifestyle benefits reinforces that it is never too late to adopt healthier habits.

References

Neergaard, L. (2025). To stay sharper while aging, get active, challenge your brain, and eat healthy. Retrieved from Science X.