AI Summary

Research using MRI scans has uncovered a previously unknown neural mechanism associated with yawning. The scans revealed that yawning is linked to increased activity in the brain's default mode network, which is typically active when a person is not focused on the external world. This network is involved in introspection and self-reflection. The findings suggest that yawning may be more than just a reflexive response to boredom or fatigue, but rather a complex physiological phenomenon with a distinct neural basis.

AI summaries can be wrong sometimes—always verify important details using the source article.