Like, for example, if you eat something spoiled or otherwise gross you might feel nauseous because your body wants it out of your system. Same thing goes for if you eat way too much. I don’t see a reason why vomiting would help in the event of nausea, nor do I see how nervousness or anxiety would be able to manifest as the physical symptom of nausea.
In: Biology
Your stomach and brain are connected through the vagus nerve. When you feel anxious, your brain sends nerve signals to your stomach, making you feel nauseous.
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