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Understanding how your nervous system works can empower you to manage stress, regulate emotions, and support your mental health. This post explains the role of the vagus nerve and offers some practical strategies to help keep your nervous system balanced.

What is the vagus nerve?

The vagus nerve is a major nerve that connects your brain to your body. It is part of the parasympathetic nervous system, which is responsible for helping you rest, recover, and feel calm.

It is sometimes called the "wandering nerve," because it travels from the brain to many organs, including the heart, lungs, and gut. Among other things, it helps to:

• Slow your heart rate
• Promote digestion
• Regulate breathing
• Help you feel safe and connected to others

Your nervous system: sympathetic vs parasympathetic

Your nervous system has two main modes.

The sympathetic branch is your "fight or flight" response, activated during stress, preparing you to respond to threats. The parasympathetic branch is your "rest and digest" mode, activated during calm, allowing your body to relax and restore itself.

The vagus nerve plays a key role in switching between these two modes. A well-functioning vagus nerve can help you recover from stress more quickly, and maintain a better sense of balance in body and mind.

Signs of a healthy nervous system

• You feel calm and relaxed most of the time
• You can handle stress without becoming overwhelmed
• You feel connected to others and enjoy social interaction
• You sleep well and digest food comfortably

How the vagus nerve affects mental health

Anxiety can be linked to an overactive fight-or-flight response, leading to constant worry or panic. Low vagal tone, meaning reduced activity of the vagus nerve, can make it harder to feel motivated or to enjoy life, which is often seen alongside depression. And trauma can disrupt the nervous system altogether, making it difficult to feel safe and regulated.

Ways to support your vagus nerve and nervous system

Here are some simple techniques that can help activate your parasympathetic nervous system and improve vagal tone.

Breathing exercises. Slow, deep breathing stimulates the vagus nerve and calms the body. Try breathing in for 4 seconds, holding for 4 seconds, and exhaling for 6 seconds.

Cold exposure. Cold temperatures can activate the vagus nerve and improve your stress response. Try splashing your face with cold water, or taking a cool shower for 30 seconds.

Humming, singing, or chanting. The vagus nerve is connected to your vocal cords, so using your voice can stimulate it. Hum a song, chant a mantra, or sing out loud.

Yoga and stretching. Gentle movement can help regulate your nervous system and reduce tension. Focus on slow, mindful stretches or yoga poses such as Child's Pose or Downward Dog.

Social connection. Feeling safe and connected to others helps activate the vagus nerve. Spend time with supportive friends or family, or take part in activities that feel genuinely social.

Mindfulness and meditation. Mindfulness helps you stay present and calm. Try spending 5 to 10 minutes a day focusing on your breath, or observing your thoughts without judgment.

Laughter. Laughing activates the vagus nerve and helps reduce stress. Watch something that makes you laugh, or share jokes with a friend.

Massage and touch. Physical touch, such as a neck or foot massage, can stimulate the vagus nerve. Try gentle self-massage, or consider professional therapies such as acupuncture.

Healthy nutrition. The gut and brain are connected through the vagus nerve, so a healthy gut supports mental health too. Aim to include probiotics, fibre, and nutrient-rich foods in your diet.

Gratitude practice. Focusing on what you are grateful for helps shift your nervous system into a calmer state. Try writing down three things you are grateful for each day.

When to seek help

If you feel constantly overwhelmed, anxious, or disconnected, you may benefit from additional support. It can be worth reaching out to a mental health professional to explore therapy or other interventions.

Takeaway

Your vagus nerve plays a vital role in keeping your body and mind balanced. By practising simple techniques regularly, you can strengthen your vagal tone and support your mental health over time.

Small changes can lead to meaningful improvements in how you feel, and in how well you cope with life's challenges.