In ancient time our tribal ancestor used these abilities in their daily lives. For instance, before they would leave home for a hunt they would visualize the surrounding environment for the possible target and to avoid danger. As humans evolve from a nomadic hunting lifestyle to a settled agricultural society, their innate ability gradually devolved.

     In history there is much evidence of people with EHF. For example: People now tend to relate EHF with Qigong and assume that only Qigong practitioners develop EHF. In fact before Qigong became popular there were already many witch doctors using EHF in treatment. They discovered their healing power unintentionally and began to help people solve many problems. In the United State during World War II a renowned psychic, Edward Cayce, was able to diagnose diseases and prescribe medication effectively without formal training. On the other hand, practicing Qigong is an excellent way to develop EHF. Our repressed or underdeveloped potentials are activated in a Qigong state.