Why do I hum unconsciously?

Humming unconsciously can be a way for your brain to self-soothe or relieve stress. It often occurs when you're feeling relaxed or distracted, as a form of self-expression or a coping mechanism. Additionally, humming can stimulate the release of endorphins, contributing to a sense of well-being. This behavior may also be linked to the brain's natural inclination to create rhythm and melody, reflecting a fundamental aspect of human nature.