Technische Universität München

The Entrepreneurial University

Human growth hormone (hGH), insulin and insulin-like growth factor (IGF) stimulate growth of all tissues exerting anabolic effects in the body which may be associated with aggressive and violent behaviour. Adverse effects of application of these hormones include hypertrophic neuropathy, vision loss, sleep apnea and possible development of type II diabetes mellitus, which might change the psychic state of the person. 
Corticotropins  stimulate synthesis and secretion of corticosteroids such as cortisol and corticosterone. The increased plasma level of both hormones changes the mood of an athlete for better training performance or competition.