Why do we yawn?
An expert provides some insights on why we yawn and whether it is contagious.
Christian Agudelo has some insights for you into why we yawn and whether it is contagious.
It is an instinct. All animals do it. Cats are particularly good at it.
We all yawn. Whether we want to or not. We open our mouths and try to swallow air, or at least that is how it seems.
But why do we do it? Is it because we need sleep, or are we hungry or bored? Some experts even say that fetuses yawn.
There are no definitive studies on why humans yawn. But here, Agudelo, an assistant professor of clinical neurology at the University of Miami Miller School of Medicine and co-director of education for the Evelyn F. McKnight Brain Institute, explores the possible reasons for this phenomenon:
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