Facial muscles are highly activated in the act of crying. It is such an intense expression of human emotion, and we all know the feeling that lingers after even a moderate amount of crying. It takes a while for facial features to actually change from the emotion of sadness, but if you stay in that tension pattern, it can kick off a muscle habit of holding your face that way. This can contribute not only to your features becoming more downturned and tensed in, but also can actually keep you stuck

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