Expert explains how loneliness affects memory performance in older adults

The landscape of public health is shifting as researchers uncover the profound impact of emotional well-being on cognitive performance.

A significant study involving more than 10,000 Europeans, conducted over six years, has revealed that older adults who experience loneliness score measurably worse on memory tests than their socially connected peers.

On Tuesday, April 21, 2026, findings published in the journal Ageing & Mental Health highlighted that while loneliness lowers the starting point for memory, it does not cause the mind to deteriorate any faster.

"It suggests that loneliness may play a more prominent role in the initial state of memory than in its progressive decline," stated Professor Luis Carlos Venegas-Sanabria of the Universidad del Rosario School of Medicine and Health Sciences.

The research, which utilised data from the Survey of Health, Ageing and Retirement in Europe (SHARE), suggests that socialisation acts as a vital foundation for mental clarity.

Practical Management

While age remains the primary predictor for memory performance—with declines accelerating after age 75—certain lifestyle factors can provide a "cognitive buffer." The study tracked 10,217 adults aged 65 to 94 across 12 countries to identify these protective habits.

• Engage in moderate or strenuous physical activities at least once a month.
• Prioritise social interactions to maintain a higher baseline of cognitive capacity.
• Monitor medical conditions such as diabetes and depression, which impact scores.

By initiating social treatments before the age of seventy, individuals can ensure a higher level of function for a more extended period, effectively mitigating some risks associated with isolation.

Please Note: This information is for educational purposes only and does not count as professional advice.