One reason some people feel nauseated before doing something that they are afraid of-like giving a class presentation-is that activation of the sympathetic nervous system

Question

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Activation of the sympathetic nervous system (the "fight or flight" response) slows down digestion in order to divert blood flow and energy to the muscles and brain to prepare for the perceived threat. This can lead to feelings of nausea as the digestive system is disrupted.

One Reason Some People Feel Nauseated Before Doing Something That