A study by Robert McCraty at the "HeartMath Institute" investigates electromagnetic fields created by the human heart and claims:
Particular emphasis will be devoted to evidence demonstrating that this energy is not only transmitted internally to the brain but is also detectable by others within its range of communication [1]
Can electromagnetc fields generated by a human heart lead to measurable changes in body or brain functions of other people?
[1] The Energetic Heart: Bioelectromagnetic Communication Within and Between People - unfortunately, the full text is not freely available.