Why, when a person is excited, his mouth automatically opens?

Why, when a person is excited, his mouth automatically opens?

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answers (2)

Answer 1
January, 2021

Seen from the perspective of evolution and women. This is quite conditioned.

In women, during arousal, the blood rushes to the lips and they turn red, which indicates that "it is very hot there" and calls you to bed. For the same reason, girls actively rub their lips and use lipstick. In men, this is individual, but already associated with the repetition of the partner's movements.

Sorry for the mistakes, it's not convenient from the phone)

Answer 2
January, 2021

I think the main reason is that when aroused, metabolic processes in tissues improve, which requires more oxygen, and therefore a person begins to breathe through his mouth to satisfy this need.

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