![]() ![]() It may also be better equipped to manage blood sugar, according to research published in 2020. People with a strong vagal tone may find it easier to relax after a stressful event, and their body may be better able to manage inflammation and gut issues. Vagal response reduces with age, according to research. If VNS can help manage depression, some people have been looking into various ways of stimulating the vagus nerve to boost mental well-being. It’s thought that VNS could help treat a range of other conditions in the future, including multiple sclerosis, posterior autoimmune uveitis, Alzheimer’s disease, and cluster headaches.Įxperts are keen to learn more about the vagus nerve, as it may hold clues to various health issues. Once the device is activated, it sends signals through the vagus nerve to your brainstem, transmitting information to your brain.Ī neurologist usually programs the device, but people often receive a handheld magnet they can use to control the device on their own as well. The device is usually placed under the skin of the chest, where a wire connects it to the left vagus nerve. If research can confirm this, researchers say VNS could help with a variety of health issues. It’s used to treat some cases of epilepsy and depression that don’t respond to other treatments.Įxperts believe the vagus nerve might form a link between depression, metabolic disease, and heart disease. Vagus nerve stimulation (VNS) involves placing a device in the body that uses electrical impulses to stimulate the nerve. To prevent it, a doctor may recommend drinking plenty of fluids or avoiding standing up quickly. If you experience fainting, it’s a good idea to see a doctor to rule out potential serious causes. This is known as vasovagal syncope.įactors that can trigger this include pregnancy, emotional stress, and pain, but there may be no clear cause.Īlongside this type of fainting, you may experience: When it overreacts, it can cause a sudden drop in heart rate and blood pressure, resulting in fainting. The vagus nerve stimulates certain muscles in the heart that help to slow heart rate. After 4 weeks, participants saw improvements in their symptoms, including their ability to empty the bowel, suggesting this could be a useful therapy for people with this condition. Some people develop gastroparesis after undergoing a vagotomy procedure, which removes all or part of the vagus nerve.Ī 2020 study looked at the impact of vagal nerve stimulation in people with mild to moderate gastroparesis without a known underlying cause. loss of appetite or feeling full shortly after starting a meal.nausea or vomiting, especially vomiting undigested food hours after eating.This condition affects the involuntary contractions of the digestive system, which prevents the stomach from properly emptying. GastroparesisĮxperts believe that damage to the vagus nerve may also cause a condition called gastroparesis. This can be further explained by management of some types of tachycardia that can include vagal nerve maneuvers in order to try to stimulate more vagal nerve activity to slow the heart rate. Vagal nerve dysfunction can cause both slow and fast heart rates depending on the type of dysfunction.įor example, overactivity can lead to bradycardia (or slow heart rate) while disease causing insufficient activity of the vagus nerve can lead to tachycardia (fast heart rate). The symptoms someone might have depend on what part of the nerve is damaged. depression and anxiety in people with breathing problems or heart disease. ![]() Potential symptoms of damage to the vagus nerve include:
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