New research suggests brain health can be measurably improved at any age

A recent study published in Scientific Reports suggests that adults of all ages can actively improve and maintain their brain health over several years by using accessible online training and coaching tools. The findings provide evidence that engaging with specific mental strategies and healthy habits tends to boost cognitive, emotional, and social well-being. This research points to a future where brain health care focuses on continuous growth rather than just screening for memory decline in older age.

The human lifespan has increased significantly over the past century, bringing attention to the need to match physical longevity with an extended brain health span. Brain health span refers to the period of life during which a person maintains or improves their mental, emotional, and social functioning.

While many traditional medical approaches focus on detecting and treating brain diseases like dementia after they start, a growing body of evidence suggests that taking proactive steps can optimize brain performance early on. This preventative perspective relies on neuroplasticity, which is the brain’s inherent ability to adapt, reorganize, and form new neural connections in response to learning and experience.

“For too long, we’ve operated under the outdated notion that we need to wait until something bad happens to our brain before we do anything for it,” said Sandra Bond Chapman, chief director of the Center for BrainHealth and distinguished professor at the University of Texas at Dallas. “This study reminds us that our brain is not defined by age, it is defined by possibility.”

Chapman noted that while medical advances have successfully increased human longevity, it is equally important to sustain cognitive vitality as people grow older. “Humans have already expanded how long we live,” Chapman said. “Now, we are expanding how long the brain can continue to improve, disrupting the trajectory of decline that often begins in our early 30s. Because the true promise of longer life is a brain that allows us to thrive year by year.”

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Historically, medical assessments have focused on deficits, comparing older adults to younger populations to measure how much cognitive speed or memory has been lost. Such an approach can create a stigma around aging and limit treatments to those who are already experiencing severe memory issues. To challenge this narrative, a team of scientists designed a new way to measure and train holistic brain function. They aimed to see if people could strengthen their brain health at any age by treating it like physical fitness, where regular exercise leads to measurable gains.

To explore this, the research team launched the BrainHealth Project, an ongoing longitudinal study acting as an online clinical trial. The study sample included 3,966 adults between the ages of 19 and 94 from across the United States and over 60 other countries. Participants accessed a secure online platform where they completed a comprehensive evaluation called the BrainHealth Index every six months over a three-year period. This index serves as a personalized benchmark rather than a diagnostic test, allowing individuals to track their own progress over time.

The BrainHealth Index measures three major factors of daily functioning, beginning with cognitive clarity. Cognitive clarity evaluates a person’s readiness to reason through complex situations, form new ideas, and apply executive functions. Executive functions are the high-level mental skills that help people plan, focus their attention, and juggle multiple tasks.

The index also scores connectedness, which assesses a person’s social health, their sense of purpose, and their relationships with others. The final factor measured by the index is emotional balance. This factor gauges mental well-being, mood, stress levels, and resilience during difficult times.

After taking the initial assessment, participants gained access to self-paced micro-learning modules. These short video lessons and activities required only 5 to 15 minutes of daily engagement. The micro-training focused on cognitive strategies, such as how to filter out distractions, synthesize information, and avoid multitasking.

The platform also provided habits for users to practice, such as setting aside uninterrupted blocks of time for important tasks, managing stress, and improving sleep hygiene. Additionally, participants could schedule brief virtual coaching sessions every three months to discuss their scores and set personal goals. The authors recorded how often participants used the platform’s resources, categorizing their engagement as low, modest, or high utilization. They then tracked how these utilization levels influenced the participants’ BrainHealth Index scores over the three-year study.

The study revealed a consistent pattern of upward growth in brain health for the sample as a whole. Participants demonstrated significant improvements in their overall index scores, as well as in the specific areas of cognitive clarity, emotional balance, and social connectedness. These gains were observed across the board, regardless of a participant’s starting score. In fact, individuals who began the study with the lowest brain health scores showed the most substantial improvements over time.

The data suggests that participants with lower initial performance had a vast capacity to learn new strategies and close the gap with higher-performing individuals. Those who started with high scores also continued to see measurable growth over the roughly 1,000 days of the study, indicating that there is no known ceiling on how much a person can improve. The level of engagement with the online platform played a major role in the degree of improvement. Participants categorized as high utilizers experienced significantly greater changes in their scores compared to those with low or modest utilization.

Interestingly, a majority of participants who started with low utilization chose to engage more heavily with the training modules after their first six months. When these individuals increased their daily activity on the platform, their brain health scores subsequently rose. This shift provides evidence that active, consistent skill-building directly influences mental performance.

The research also highlighted a rebound effect among participants dealing with major life stressors. The authors noted that individuals utilized their new cognitive strategies to recover, maintain, or even increase their brain health during challenging periods. These stressful events included personal illness, job loss, or caregiving for loved ones. This pattern suggests that mental resilience is trainable and responsive to proven tools.

The researchers found that demographic factors did not limit these positive outcomes. Younger adults and older adults improved at similar rates, challenging the myth that proactive brain health is only for seniors. Men and women showed comparable gains, and a person’s education level had only a very minor effect on the results. This indicates that proactive brain health strategies tend to be universally applicable.

The authors believe that learning these mental strategies equips people with a sense of self-agency, which is the feeling of being in control of one’s own actions and well-being. “Every brain is as unique as a fingerprint and has potential for growth,” said Lori Cook, director of clinical research at the Center for BrainHealth. “By moving away from one-size-fits-all solutions, we are empowering people with a personalized blueprint and the agency to continuously invest in their brain health and performance.”

While the study provides evidence for the benefits of online brain health training, it does have some limitations. The research was designed as a single-arm trial, meaning there was no separate control group taking a placebo or receiving no training. Because all participants had access to the tools, the authors could not compare the training directly to a group that did nothing. However, previous smaller trials by the same team have used active control groups to suggest these improvements go beyond simple practice effects.

Another limitation involves the diversity of the study sample. Most participants were highly educated, with less than 15 percent having less than a college degree. This lack of demographic variety means the findings might not completely apply to populations with different educational or socioeconomic backgrounds. Additionally, the online and self-guided nature of the study led to some participant dropout over the three years, which is a common challenge in long-term internet-based health programs.

Future research will need to recruit a more diverse group of participants to ensure these strategies work equally well for everyone. The scientists are also updating their platform to collect more objective health data, such as sleep and physical activity metrics from wearable devices, as well as detailed medical histories. By combining self-reported measures with biological markers and brain imaging, the research team hopes to better understand the physical changes happening in the brain as people practice these habits.

The study, “Measuring and increasing the brain health span across adulthood: a public health imperative,” was authored by Lori G. Cook, Jeffrey S. Spence, Zhengsi Chang, Erin E. Venza, Aaron Tate, Ian H. Robertson, Mark D’Esposito, Geoffrey S. F. Ling, Jane G. Wigginton, and Sandra Bond Chapman.