The Science of Music: Why Songs Get Stuck in Your Head

Earworms (involuntary musical imagery) affect 98% of people and 90% experience them weekly. Neuroscience shows the auditory cortex 'plays' songs even without external sound. Songs that become earworms share patterns: simple melody, repetitive structure, unusual interval patterns, and pace matching common walking rhythm. The Zeigarnik effect (brain holds incomplete information) explains why unfinished songs loop more. Cure: chew gum (occupies jaw muscles used in subvocalization), listen to the full song (completing the loop), or distract with a mentally engaging task. Commercial application: advertisers and pop songwriters deliberately craft earworms.