Evidence
- aganov-s_2018_crossover_pure-purr-virtual-reality-technology-measuring-heart-rate-variability-and-anxiety-levels-in-healthy-volunteers-affected-by-moderate-stress
- aganov-s_2018_crossover_pure-purr-virtual-reality-technology-measuring-heart-rate-variability-and-anxiety-levels-in-healthy-volunteers-affected-by-moderate-stress
- patel-r_2026_rct_impact-of-guided-meditation-on-heart-rate-variability-and-psychological-well-being-in-critically-ill-obstetric-patients