Space Marines - Conditioning: In addition to the extensive implantation process for the gene-seed organs, both Firstborn and Primaris neophytes undergo chemical treatment, psychological conditioning, and subconscious hypnotherapy, all the while spending every waking solar hour honing their combat skills with ceaseless combat training.Until their acceptance as a full initiate and battle-brother of their Chapter, a neophyte must submit to constant tests and examinations by the Chapter Apothecaries.The newly implanted organs must be monitored very carefully, imbalances corrected, and any sign of corrupt or deviant development treated. This chemical treatment is reduced after completion of the initiation process, but it never ends.Space Marines undergo periodic drug treatment for the rest of their lives in order to maintain a stable metabolism. To this end, Space Marine power armour contains extensive physiological monitoring and drug dispensation equipment.As the super-enhanced body grows, the recipient of the gene-seed organs must learn how to use his new skills. Some of the implants, specifically the Catalespean Node and Occulobe, can only function once correct hypnotherapy has been administered. Hypnotherapy is not always as effective as chemical treatment, but it can have substantial results.If a Space Marine can be taught how to control his own metabolism, his dependence on drugs is lessened. The process is undertaken in a machine called a Hypnomat. Space Marines are placed in a state of hypnosis and subjected to visual and aural images in order to awaken their minds to their unconscious metabolic processes.A Space Marine is more than just a Human being with extraordinary powers. Just as their bodies receive 19 or 22 separate gene-seed implants, so their minds are altered to release the latent powers that lie within all Human minds, and these are not the psychic powers of the Warp but the intrinsic capabilities of every Human brain. These mental powers are, if anything, more extraordinary than even the physical powers endowed by the gene-seed implants.For example, a Space Marine can control his senses and nervous system to a remarkable degree, and can consequently endure pain that would kill a normal man. A Space Marine can also think and react at lightning speeds.Memory training is an important part of the Astartes' psycho-indoctrination as well and some Space Marines develop photographic memories in the course of their psychoconditioning and hypnotherapy.Space Marines, of course, vary in intelligence as do other men, and their individual mental abilities vary to some degree, as their implants do not reshape their core neural architecture and psyches, though the hypnotherapy does act to "smooth out" many personality quirks.This indoctrination also includes psychological conditioning which is intended to reinforce a Space Marine's respect for authority and his willingness to follow orders regardless of his own desires, as well as to harden his mind to the corruptive temptations offered by Chaos.It is no exaggeration to say that many Astartes truly no longer know fear. At the end of this process, if all goes well, an adolescent Human male will have been transformed into a superhuman Astartes. Yet, in many ways he will no longer truly be Human, having sacrificed his own Humanity so that he might protect that of others.