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Why Do We Yawn, and Why Is It Catching?
Science isn't entirely sure why humans and other animals yawn, let alone why yawning can be contagious -- but we've got some good hypotheses. Learn about them, from cooling the brain to spreading alertness, in today's ep...
About This Episode
Why Do We Yawn, and Why Is It Catching? is an episode from BrainStuff by iHeartPodcasts. Science isn't entirely sure why humans and other animals yawn, let alone why yawning can be contagious -- but we've got some good hypotheses. Learn abo...
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Published Aug 12, 2026, 12:03 long, audio available.
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