From the summary:

This study represents one of the first successful attempts to directly measure an energy exchange between people, and provides a solid, testable theory to explain the observed effects of many healing modalities that are based upon the assumption that an energy exchange takes place.

Researchers found that the exchange is strongest through touch, but that there is still an energy exchange that occurs from proximity.

I’m not sure who is still doubtful about this, except that Western medicine seems to want scientific proof. Here it is.

This finding applies to the healing modalities that include touch and proximity (all forms of massage, Reiki, faith healing, and deeksha come to mind, and also psychotherapy and being in the presence of spiritual teachers).

Here’s the link to the whole study, The Electricity of Touch: Detection and Measurement of Cardiac Energy Exchange Between People. It’s from the Institute of Heartmath.