A closer look
Choir singers naturally synchronize their heartbeats when singing together, turning a group of vocalists into a slightly creepy, unified biological metronome. Researchers found that the shared breathing patterns required to hit specific notes and hold long phrases force the autonomic nervous systems of everyone in the room to align, causing their heart rates to accelerate and decelerate at the exact same time. This physiological mirroring happens because chanting and singing require a highly regulated vagus nerve response, effectively tricking multiple separate human bodies into operating like one giant, harmonious organism. It is a beautiful testament to the power of music, or a terrifying display of how easily our autonomous survival functions can be hijacked just by forcing a bunch of adults to aggressively belt out a Mozart requiem
