Why Our Eyes Water When We Yawn?

Have you ever yawned so deeply that you felt a tear trickle down your cheek? Well, you're not alone. Today, I'm going to unravel the surprising reason behind why our eyes water when we yawn. First off, let’s talk about yawning itself. Yawning is a natural response of the body which is often triggered by tiredness, boredom, or even when we see someone else yawn. But why do our eyes decide to join in on this seemingly simple act? It all comes down to our physiology. Inside our faces, there’s a structure called the lacrimal gland, which sits just above each eye. This gland is like a tiny water pump, producing the tears that help keep our eyes moist. Now, when you yawn, your facial muscles tighten and this puts pressure on the lacrimal gland. As a result, the gland is literally squeezed, pushing out a little excess tear, leading to those watery eyes. But there’s a bit more to it. Yawning often involves stretching of the muscles around the face and opening the mouth wide, which enhances facial blood flow and increases pressure in the skull. This pressure can further stimulate the lacrimal glands to release tears. Interestingly, this tear production isn't due to emotional responses as when we cry. It's purely mechanical. The tears caused by yawning are just your body's way of adjusting to the changes in facial pressure and muscle tension. So, the next time you find yourself wiping away a tear after a yawn, remember, it's just your body doing its fascinating work of keeping everything in balance. Who knew such a simple action could be so complex?

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