Vagus Nerve Damage among Athletes: 7 Things You Didn’t Know


Health is one of the most critical factors for all types of athletes to deliver the highest level of performance. To maintain sound health, the vagus nerve plays a crucial part such as regulating heart rate, digestion, and breathing. Vagus nerve damage symptoms can lead to a variety of health issues and greatly impacts the performance of an athlete.

In fact, a significant number of athletes have suffered from vagus nerve damage which shortened their careers. So, if you are an athlete, check out these seven things you did not know about vagus nerve damage and its implications among athletes.

1. What Is the Vagus Nerve?

The vagus nerve is a crucial nerve, which is also the longest nerve in the body; it starts in the brainstem and travels through the neck, chest, and abdomen, innervating various organs along the way.

The vagus nerve plays a crucial role in regulating many important bodily functions, such as heart rate, breathing, digestion, and immune response, which is why vagus nerve damage symptoms can involve any of them.

The Vagus nerve is deeply involved in communication between the brain and the gut, which is why it is sometimes called the “gut-brain axis.” In addition to its physical functions, the vagus nerve also impacts mental health.

Researchers have found that stimulation of the vagus nerve can help alleviate symptoms of depression, anxiety, and PTSD.

If you want to enjoy the benefits of vagus nerve stimulation (VNS), learn the functions of the vagus nerve and the benefits of stimulating it – or just generally learn more about the vagus nerve, look here.

2. Why Is the Vagus Nerve Important for Athletes?

For athletes, the vagus nerve is particularly important because it helps to regulate heart rate variability (HRV). High HRV is generally considered a sign of good health, as it indicates that the body can adapt to changing demands.

Athletes with higher HRV tend to perform better in various sports, including endurance events like long-distance running and cycling.

Plus, the vagus nerve also regulates inflammation, which is another key factor in athletic performance. Athletes can reduce inflammation and enhance their recovery from controlled physical activities by activating the vagus nerve.

3. What Causes Vagus Nerve Damage Among Athletes?

Vagus nerve damage can occur due to repetitive trauma or overuse, particularly in contact sports such as football, rugby, or boxing.

Athletes participating in these sports are at higher risk of developing vagus nerve damage due to repeated blows to the head or neck area.

Concussions, a type of traumatic brain injury, can also cause vagus nerve damage. During a concussion, the brain can shift inside the skull, causing damage to the nerve fibres that make up the vagus nerve.

Athletes can experience vagus nerve damage through excessive stretching or compression of the nerve during certain movements or positions. In some cases, vagus nerve damage can also be caused by underlying medical conditions, such as diabetes, autoimmune disorders, or tumours.

4. What Are the Symptoms of Vagus Nerve Damage?

Vagus nerve damage symptoms can vary widely depending on the location and severity of the injury. When an athlete experiences vagus nerve damage, they may encounter symptoms such as:

  • Hoarseness or loss of voice: Damage to the vagus nerve can affect the muscles in the larynx (voice box) and lead to difficulty speaking.
  • Difficulty swallowing: The vagus nerve also controls the muscles that help us swallow, so damage to this nerve can make it harder to eat or drink.
  • Gastrointestinal problems: The vagus nerve plays a significant role in regulating digestion and bowel movements. Damage to the nerve can cause a range of gastrointestinal issues, such as constipation, bloating, and diarrhoea.
  • Chronic inflammation: The vagus nerve regulates the body’s immune response; when it gets damaged, the immune system becomes overactive and triggers inflammation.
  • Respiratory problems: The vagus nerve also helps control our breathing rate and rhythm, so damage to this nerve can cause breathing difficulties.
  • Increase in heart rate: This happens because the vagus nerve helps to slow down the heart rate, and when it is not functioning properly, the heart may beat faster than usual.
  • Dizziness and fainting: The vagus nerve also plays a role in controlling blood pressure, so damage to this nerve can cause dizziness, light-headedness, or fainting spells.

5. How Is Vagus Nerve Damage Treated?

Treatment for vagus nerve damage among athletes depends on the underlying cause and severity of the damage.

One of the first steps in treating vagus nerve damage in athletes is to rest and avoid activities that may exacerbate the injury. This may involve modifying training regimes or temporarily stopping participation in contact sports like football, soccer, boxing, etc.

The use of medication such as painkillers or anti-inflammatory drugs may also be recommended to manage symptoms.

Vagus Nerve Stimulation (VNS) is a type of medical treatment that involves using electrical stimulation to activate the vagus nerve. There are two main types of VNS treatment:

  • Invasive VNS involves implanting a small device, usually in the chest or neck, which is connected to the vagus nerve. Doctors often use this method to treat conditions like epilepsy, depression, and chronic pain.
  • Non-invasive VNS, on the other hand, involves delivering electrical stimulation to the vagus nerve without the need for surgery or implantation. This type of treatment is mostly used as a complementary or alternative therapy to treat a variety of conditions. To learn more about VNS, click here.

Physical therapy and exercise can be extremely helpful in managing symptoms and stimulating vagus nerve regeneration.

If the nerve damage is severe and causes significant disability, surgery may be considered to repair or replace damaged nerves. For information on promising/potential treatments, look here.

6. How Can Athletes Prevent Vagus Nerve Damage?

Preventing vagus nerve damage requires athletes to be aware of the risks and take steps to protect themselves. As an athlete, here are some strategies that may help you prevent vagus nerve damage:

  • Always wear appropriate protective equipment, such as helmets or mouthguards.
  • Avoid sports that can cause repetitive head trauma, such as any kind of contact sports.
  • Try to maintain proper posture and body mechanics during training or while participating in a competition.
  • Take adequate rest and recovery time between workouts and events
  • Evaluate your sports nutrition and exercise performances to measure overall health and healing.

7. How Can Coaches and Trainers Prevent Vagus Nerve Damage?

Coaches and trainers play an important role in preventing vagus nerve damage among athletes. Trainers can minimize the risks of nerve injuries by educating athletes about the risks of repetitive head trauma.

Besides, they can encourage athletes to wear protective equipment and monitor signs of fatigue or overuse injuries. By working closely with coaches and trainers, athletes can receive the support they need to protect their health and avoid injury.


Vagus nerve damage can have serious implications for athletes, affecting their performance and long-term health.

However, with the right measures, athletes can reduce their risk of vagus nerve damage and protect their health and well-being.

By working together with coaches, and medical professionals, they can minimise the risk of nerve damage and long-term health consequences.


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