A pelican, around 37 years old, shows up every day at a Greek restaurant to get its portion of fish. The bird has become a well-known local figure along the seafront
Did you know?
Science studies show that singing can dramatically boost levels of secretory immunoglobulin A (sIgA)—a key antibody that defends mucosal surfaces in the mouth, throat, and gut against pathogens—by up to 240% in as little as one hour.
This surge occurs specifically from active singing, as demonstrated in research on choir members: one hour of group vocal performance led to substantial increases in sIgA (measured as a proportion of total salivary protein), while simply listening to the same music produced little or no comparable effect on this immune marker. The physical act of singing— involving deep breathing, vibration, and engagement—appears essential for triggering the rapid antibody response.
Beyond the direct immune lift, singing activates the vagus nerve, promoting relaxation, lowering cortisol (the main stress hormone), and helping regulate overall immune function. These benefits extend across diverse groups, from healthy amateurs to cancer patients, caregivers, and those experiencing grief, with improvements seen regardless of singing skill or experience.
The effect is inclusive and accessible: no professional training required—just raising your voice offers a quick, natural way to enhance resilience, reduce stress, and support mucosal immunity.
[Kreutz, G., Bongard, S., Rohrmann, S., Hodapp, V., & Grebe, D. (2004). Effects of choir singing or listening on secretory immunoglobulin A, cortisol, and emotional state. Journal of Behavioral Medicine, 27(6), 623–635. DOI: 10.1007/s10865-004-0006-9]
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