Why do we yawn?
I’ve always wondered, why do we yawn? Is it just because we’re tired, or is there more to it? I’ve heard it could be related to oxygen levels or even a way to communicate with others. Does anyone know the real reason behind it?
I’ve always wondered, why do we yawn? Is it just because we’re tired, or is there more to it? I’ve heard it could be related to oxygen levels or even a way to communicate with others. Does anyone know the real reason behind it?