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Unlock the full potential of your Vagus Nerve with this transformational guide, including practical strategies to treat headache, chronic pain, anxiety, depression, and more. Harness the power of vagus nerve (VN) function and heart rate variability (HRV) in the long-awaited follow-up to bestseller Activate Your Vagus Nerve by Dr. Navaz Habib. This entirely new book goes beyond activation alone to explore stressors, measurement techniques, and practical protocols to create a roadmap to a healthier, happier life. Cowritten by functional medicine expert Dr. Navaz Habib, this book offers an approachable overview of recent research, easy-to-implement strategies, and more. With Upgrade Your Vagus Nerve, you'll learn how to:
Understand the impact of psychological and physical stressors, such as traumatic incidents and nutritional deficiencies
Explore the intricate functioning of the vagus nerve and its connection to the parasympathetic nervous system and the microbiome-gut-brain axis
Learn how to measure vagus nerve function using heart rate variability (HRV) and other devices
Discover a wide range of strategies to upgrade your HRV/VN tone, including non-invasive electrical stimulation, breathwork techniques, nutritional optimization, sound therapy, temperature exposure, circadian biology alignment, and more

Find balance, become resilient, and embark on a journey toward improved well-being with the help of the vagus nerve.