Bundang Seoul National University Hospital study shows public lecture improves insomnia

A research team led by Professor Chang-ho Yoon of the Department of Neurology at Bundang Seoul National University Hospital has found that attending a single 60-minute public health lecture can significantly improve insomnia symptoms.

The study applied the behavioral economics concept of ‘scarcity theory’ to sleep education. This theory suggests that when individuals lack a resource, such as time or money, their focus narrows and judgment declines. In the context of insomnia, the constant worry about not sleeping consumes mental energy, creating a cycle of tension and heightened anxiety.

Following a four-week follow-up study of participants, 72.4% reported that their insomnia symptoms had generally improved. Key findings included a 25% reduction in harmful beliefs regarding sleep, a 20% reduction in insomnia symptoms, and a 25% decrease in the mental burden caused by sleep-related anxiety. The improvements observed are comparable to results from multi-week self-treatment or online cognitive behavioral therapy.

The lecture series focused on three stages: understanding the principles of insomnia, learning to accept the state of being awake without excessive worry, and establishing healthy sleep habits. The research team suggests this approach could serve as a low-cost, accessible first step in a tiered treatment model for patients who cannot immediately access professional cognitive behavioral therapy.