Fig. 4From: A pilot randomized controlled trial of supervised, at-home, self-administered transcutaneous auricular vagus nerve stimulation (taVNS) to manage long COVID symptomsIndividual Participant Heart Rate Monitoring. We recorded the mean heart rate (error bars = sem) during the first 6 taVNS sessions in all participants. Regardless of stimulation condition, all participants maintained a safe mean heart rate and did not experience any bradycardia eventsBack to article page