Scalable Telephone-Based Behavioral and Mindfulness Interventions Effectively Reduce Long-Term Loneliness in At-Risk Older Adults: Insights from the HEAL-HOA Trial

Highlights

The HEAL-HOA randomized clinical trial (RCT) provides robust evidence for the long-term efficacy of brief, telephone-delivered psychological interventions in mitigating late-life loneliness. The following highlights summarize the core findings:

• Lay counselor-delivered interventions using Behavioral Activation (BA) and Mindfulness (MF) significantly reduced loneliness at 12 months compared to a befriending control group.
• The effects were sustainable, with improvements extending to secondary outcomes such as sleep quality, life satisfaction, and psychological well-being.
• Social isolation was identified as a key mediator, accounting for 13.5% to 18.0% of the total treatment effect on loneliness.
• The telephone-based delivery model effectively bypassed the digital divide, reaching low-income, digitally excluded older adults who are often neglected by modern digital health initiatives.