Explain · Serious version
Why we yawn in terms of a notification on the group chat
The human yawn is a physiological notification sent to the group chat of your nervous system to signal a change in internal state.
Much like a WhatsApp notification that interrupts your scrolling, a yawn is an involuntary alert triggered by the brain's internal monitoring software. When you are tired or bored, your brain sends a high-priority packet of data to your facial muscles, demanding they open wide to inhale a fresh burst of air. This is essentially a "ping" designed to cool the brain and increase alertness, much like a frantic notification asking if you saw the latest video of a cat falling off a mantlepiece.
The social aspect of yawning is even more like a group chat, as it is notoriously infectious. When you see someone else yawn, your brain's mirror neurons act like a group member who reads a message and immediately feels compelled to reply with an identical "Same" or a thumbs-up emoji. You are not consciously deciding to participate in the conversation, but your biology views the yawn as an unread message that simply must be acknowledged and circulated to everyone else currently online.
This process continues until the entire room has engaged in the thread, ensuring everyone is on the same page regarding the current level of fatigue. It is a highly efficient, albeit distracting, way to keep the collective group alert, even if the only content being shared is a desperate need for a nap. By the time the final person yawns, the original message has been successfully delivered and the group can return to their status of mild, collective lethargy.
Where the analogy breaks downA group chat notification does not physically lower your core body temperature or help you regulate your metabolism.