Mar 22, 2026Autonomic HealthVagus Nerve Stimulation and Opioid Withdrawal PainA tiny tcVNS pilot linked lower opioid withdrawal pain with HRV changes. The biomarker signal is plausible, but it cannot prove treatment or mechanism.hrvvagus nerve stimulationparasympatheticrespiratory variabilityRead article →
Mar 12, 2026Vagus Nerve StimulationCan Near-Infrared Light Stimulate the Vagus Nerve?A small 2026 trial tested 850 nm light near the vagus nerve after exercise. One HRV signal changed, but the evidence is far from actionable.photobiomodulationvagus nerve stimulationhrvinfrared lightRead article →