when we yarn we get tears why?
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Explanation:
our glands produce the watery component to our eyes' own natural tears. ... When the facial muscles tighten during a yawn, the lacrimal glands .may get “squeezed” causing them to release a small amount of tears that they were storing to release later.
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Answer:
wr yarn when there is a lack of oxygen in our brain and when we yarn our brain get fulfill with the oxygen and we gets tears .
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