The Science

There is extensive research in the field of neuroscience, neurobiology, and clinical mental health showing the importance of heart rate variability and vagal tone for our mind-body health – which our protocols specifically address. For more information on this fascinating field, feel free to check out some of the research linked below.

Vagus Nerve

Activity can predict chronic diseases and unhealthy lifestyle choices in general.

Vagus Nerve as Modulator of the Brain–Gut Axis in Psychiatric and Inflammatory Disorders.

The vagus nerve and the inflammatory reflex—linking immunity and metabolism –

Vagus nerve stimulation: indications and limitations –

A review of vagus nerve stimulation as a therapeutic intervention –

Chronic fatigue syndrome from vagus nerve infection: a psychoneuroimmunological hypothesis –

How positive emotions build physical health: perceived positive social connections account for the upward spiral between positive emotions and vagal tone –

Heart Rate Variability

Heart Rate Variability Synchronizes When Non-experts Vocalize Together –

Heart rate variability in obesity and the effect of weight loss –

Heart rate variability. Applications in psychiatry

High heart rate variability a major factor in longevity

Music structure determines heart rate variability of singers –

Progressive Muscle Relaxation & Breathwork

The effectiveness of progressive muscle relaxation and interactive guided imagery as a pain-reducing intervention in advanced cancer patients: A multicentre randomised controlled non-pharmacological trial –

Effects of progressive muscle relaxation combined with music on stress, fatigue, and coping styles among intensive care nurses –

Progressive muscle relaxation shows statistically significant improvement in sleep quality and generalized anxiety in COVID-19 patients

Diaphragmic breathing improves heart rate variability and glycemic index in patients with ischemic heart disease and diabetes

Diaphragmic breathing reduces anxiety levels in randomized, controlled trial

Self induced tremoring increased perceptions of quality of life among caregivers in South Africa

Increase in pain threshold and decrease in negative feelings for participants engaged in both relaxation practices and diaphragmic breathing