When A Choir Sings Their Hearts Beat As One

A choir doesn’t just sing together — when they are performing the groups’ heart beats slow and synchronise, a new study found.

The study was published in the journal Frontiers in Neuroscience on July 9. Researchers brought high school choir singers into the lab, and studied their heart rates while they sang a Swedish hymn. When they started singing, their heart beats slowed and synchronised almost immediately.

The rhythm of the beating is guided by the song’s tempo, the study authors said.

“When you sing the phrases, it is a form of guided breathing,” study researcher Bjorn Vickhoff of the Sahlgrenska Academy, told NPR. “You exhale on the phrases and breathe in between the phrases. When you exhale, the heart slows down.”

NOW WATCH: Briefing videos

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.