Singing in a choir linked to brain structure, Finnish study finds

Choral singing may strengthen brain health and boost well-being, with long-term participation associated with structural changes in the brain, according to a new doctoral study from the University of Helsinki, reported by Finnish broadcaster Yle.

The research found that the longer a person sings in a choir, the stronger the connections between different brain regions become. Among participants over 60, choral singing was particularly linked to the integrity of brain structures critical for memory.

The study involved 100 adults aged 20 to 90, half of whom sang in a choir for at least one hour per week. Using MRI scans, researchers examined brain structure and function, revealing that choral singers had stronger white matter—the tissue that connects different brain areas and facilitates communication between them.

For participants under 40, choral singing was broadly associated with healthier white matter connections. In those over 60, the benefits were most pronounced in the fornix—a deep brain structure vital for memory—and the corpus callosum, which links the brain’s hemispheres and supports cognitive processing.

Long-term choral singers also performed better on tests of memory and verbal fluency. Researchers noted that the fornix, one of the first brain regions to deteriorate with age, showed less decline in choral singers—a finding consistent with earlier international studies on piano players.

Nella Moisseinen, the study’s lead researcher, suggested that music could help maintain brain structure in older adults. “This supports the idea that music may support the aging brain,” she said, adding that future research could explore whether choral singing reduces dementia risk. Previous studies have already linked musical hobbies to a lower likelihood of dementia.

Beyond neurological benefits, choir members described the activity as socially rewarding. “When you come here, everything else fades away,” said Jaana Ritola, a singer in Helsinki’s Ilolaulu choir. Asta Levy, the choir’s conductor, noted that shared music-making creates a sense of connection. “The musical experience multiplies when done together,” she said.

The Ilolaulu choir, which meets weekly and requires no auditions, reflects a growing interest in choral singing in Finland. Participants cited camaraderie, laughter, and stress relief as key motivations.