Engineer Janez Pelko from Slovenia has been measuring human bioenergy fields - aura fields, in the last 15 years on total of over 3.500 persons. He’s been certified by professor Korotkov from Technical Institute at the University of St. Petersburg, Russia. He has been using their original software and Kirlian GDV camera.
Mr. Pelko is an author of the research study about the effects of visit to Underground Labyrinth “Ravne” in Bosnian Valley of the Pyramids to human aura. He has performed screening of 108 participants, male and female, different age and professions. Measurements were done just before and immediately after participants visited the underground tunnels and chambers.Study was performed in June of 2011 on 68 participants and June of 2012 on further 40 participants.
Study conclusion: Tunnel visit has improved human aura in 80% of cases. The improvement was in the range 10% - 40%.