What really happens in your brain when you yawn? It isn’t just about sleep |
Scientists reveal why you yawn even when you’re not tired. Image credit – Gemini Yawning is among the most common human behaviours. Often associated with fatigue or boredom, this habit, however, triggers a hidden brain process. Scientists have long believed it plays a biological role.A recent study published in Respiratory Physiology & Neurobiology, however, found…