This article compares subjects who receive sham bioelectrical energy versus verum bioelectrical energy through cell phones. The subjects receiving the verum bioelectric energy develop lower LF/HF (stress levels) and higher HRV. The author, Bev Rubik is biophysicist and an expert on energy healing. I don’t know much about energy healing, but I trust this author.
http://online.liebertpub.com/doi/pdf/10.1089/acm.2016.0198
Bioelectric energy and HRV rubik