23/03/2026
Did you know that over stimulating the vagus nerve can lead to can have the counter effect:
1. Slow heart rate: The vagus nerve helps regulate heart rate. Overstimulating it can cause the heart rate to drop too low, leading to symptoms like dizziness, fatigue, and fainting.
2. Hypotension (low blood pressure): The vagus nerve can also influence blood vessel dilation and blood pressure. Excessive vagal stimulation can cause blood pressure to drop too low, resulting in light-headedness and potential fainting.
3. Nausea and vomiting: The vagus nerve connects the brain to the digestive system. Strong vagal stimulation can trigger the vomiting reflex, leading to nausea and vomiting.
4. Gastrointestinal issues: Beyond just nausea, overstimulating the vagus nerve can disrupt normal gastrointestinal function, causing problems like bloating, constipation, or diarrhoea.
5. Respiratory issues: The vagus nerve also connects to the lungs. Excessive stimulation may lead to irregular breathing patterns or even breathing difficulties.