Why Does Crying Make Your Eyes Puffy? - Science ABC

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The tears you cry are less salty than normal tears, so water flows back into the saltier, ocular tissues around the eye, causing swelling of those tissues – puffy eyes!

As the ancient proverb famously states, “eyes are the window to the soul”, which means that they can reveal a lot about a person. For example, bloodshot eyes may hint at a long night of partying, droopy eyes make suggest a lack of sleep, and “glazed-over” eyes may actually be a clue pointing to elevated thyroid levels. However, one of the hardest “eye clues” to hide is the puffiness that invariably happens after a solid bout of crying.

You can wipe away the tears and blow your nose, but the puffy eyes after a tearful farewell, breakup or rom-com are very difficult to erase! The question is… why does crying make your eyes get so puffy?

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