Transcutaneous auricular vagus nerve stimulation (taVNS) has shown positive effects on a variety of diseases. Considering that decreased heart rate variability (HRV) is closely associated with morbidity and mortality for a variety of diseases, it is important to investigate the effect of taVNS on HRV.
The studies suggest that taVNS could increase HRV, it may help taVNS in the treatment of low HRV related diseases. However, taVNS may not have parameter-specific effects on HRV. This study showed that compared with sham transcutaneous auricular vagus nerve stimulation (staVNS), taVNS could change HRV of healthy young people, significantly improving the measurements of RMSSD, SDRR, pRR50 and HF power. Significantly, the effect of taVNS was not confined to the stimulation period. On the contrary, it had a carry-over effect. Read the full paper at PLoS ONE.