Can yawning be a sign of brain injury?

Yes, excessive yawning can be a sign of brain injury, particularly if it occurs alongside other neurological symptoms. Yawning may indicate changes in brain function or a response to fatigue, stress, or pain, which can be associated with various types of brain injuries. However, yawning is also a common behavior that can result from factors like boredom or tiredness, so it's important to consider the context and accompanying symptoms when evaluating its significance. If there are concerns about brain injury, consulting a healthcare professional is essential.