Transcutaneous Vagus Nerve Stimulation (tVNS) involves non-invasively stimulating the auricular branch of the vagus nerve with a small electrical current. This activates the parasympathetic nervous system, which can increase heart rate variability (HRV), lower systemic inflammation, and improve autonomic balance, all of which are key markers associated with healthy aging.
Verdict
A promising tool for improving autonomic function, but healthspan evidence is emerging.
HEALTHSPAN IMPACT
Moderate
RISK LEVEL
Low
EVIDENCE GRADE
B
MONTHLY COST
$250 - $1500
Protocol
- Consumer devices are typically used for 15-30 minutes, 1-2 times daily.
- Stimulation is applied via an electrode clip to the cymba conchae or tragus of the ear.
- Clinical protocols for specific diseases may require longer durations and are medically supervised.
Flags
- Contraindicated for individuals with pacemakers, defibrillators, or other implanted electronic devices.
- Potential for mild side effects like skin irritation, tingling, headache, or dizziness.
- Device quality and stimulation parameters vary significantly between consumer and medical-grade units.