In Martian Genesis - The Extraterrestrial Origins of the Human Race Herbie Brennan describes this energy, which appears to be part of all living things. Here are the scanned pages dealing with this amazing energy (starting with ch. 7):
Science of the Ancient World, Psychotronic Energy 1
Science of the Ancient World, Psychotronic Energy 2
Science of the Ancient World, Psychotronic Energy 3