Small proof-of-concept study found that 45-minute group singing sessions improved mood, social bonding, pain thresholds, and reduced cortisol in older adults with and without Parkinson's, with benefits accumulating across sessions.

The work supports group singing as a low-risk psychosocial adjunct that can improve wellbeing and stress-related biomarkers in Parkinson's patients, but it provides little mechanistic or directly drug-discovery–actionable insight.

BACKGROUND: While group singing is a long-standing human practice, a growing body of research highlights its potential to address psychosocial challenges that are prevalent in older adulthood and individuals diagnosed with neurodegenerative and age-associated conditions, such as Parkinson's. This study assessed the impact of group singing on biological, psychological, and social dimensions of wellbeing. METHODS: Two community choirs were launched, one for healthy aging older adults and one for Parkinson's. Participants (N = 24) completed assessments on mood (positive/negative affect), social bonding, pain thresholds, cortisol, and oxytocin, before and after 45 min of singing at week 2 and week 7 of a 12-week choir to explore both immediate (within sessions) and cumulative (across session) effects. RESULTS: Results indicated that both groups experienced within session improvements in positive/negative mood (p < 0.001, p = 0.03), social bonding (p = 0.01), pain thresholds (p = 0.02), and reductions in cortisol levels (p = 0.05) following group singing, with benefits accumulating across sessions for all outcomes (all ps. <0.05), except cortisol (p = 0.08). No differences were found between the healthy aging and the Parkinson's groups (all ps. <0.05), suggesting the generalizability of group singing's benefits. Self-reported singing abilities did not impact the benefits gained from the choir program. CONCLUSION: Findings demonstrate the potential of group singing to enhance psychosocial wellbeing in older adults regardless of the presence of neurodegenerative condition or self-reported singing ability. In addition, the findings provide new insights regarding the potential biological mechanisms that may be underpinning these effects.