A major international study is challenging one of the most common assumptions about ageing – that cognitive decline is simply an unavoidable part of growing older.
Researchers from the Center for BrainHealth at The University of Texas at Dallas have found that people can strengthen their brain health and improve cognitive performance at any age, including well into their 80s and beyond.
The findings come from a three-year study involving almost 4000 adults aged between 19 and 94, with participants spending as little as five to 15 minutes a day on simple brain-training activities.
Published in the journal Scientific Reports, the research tracked participants through The BrainHealth Project, an initiative designed to explore how people can improve and optimise brain health throughout their lives.
Researchers used a specialised assessment known as the BrainHealth Index, which measures three key areas linked to cognitive wellbeing – clarity of thought, emotional balance, and a sense of connection to people and purpose.
Center for BrainHealth Director of Clinical Research Lori Cook said the results offered positive news for older adults concerned about maintaining mental sharpness.
“Every brain is as unique as a fingerprint and has potential for growth,” Ms Cook said.
“This study challenges the prevailing narrative of inevitable cognitive decline, suggesting instead that brain health can be proactively cultivated at any age.”
One of the most significant findings was that participants who started with the lowest brain health scores experienced the greatest improvements over time. However, gains were recorded across all groups, including those who were already performing at a high level.
Researchers also discovered that the biggest factor influencing improvement was engagement. Age, gender and education level were not significant barriers to achieving positive results.
Senior author Professor Sandra Bond Chapman said the findings highlight the importance of taking a proactive approach to brain health rather than waiting for problems to emerge.
“For too long, we’ve operated under the outdated notion that we need to wait until something bad happens to our brains before we do anything for them,” Professor Chapman said.
“This study reminds us that our brain is not defined by age – it is defined by possibility.”
The research adds to growing evidence that the brain remains adaptable throughout life, a concept known as neuroplasticity.
Scientists believe that mental stimulation, learning new skills, maintaining social connections and engaging in purposeful activities can all contribute to ongoing cognitive health.
Whether it’s learning a new hobby, joining a community group, tackling puzzles, staying physically active or simply remaining socially connected, small daily actions may help support cognitive wellbeing and improve quality of life.
