[Changes in the adaptation behavior in old age through piracetam intake (author's transl)].

The primary goal of all regulatory processes is to preserve the internal steady state. We summarize the elapsing mechanisms with the definition "adaptation". Statements about that without considering the vigilance are impossible. Adaptation and vigilance are closely related to each other. If the verified "Pirazetam" (Normabrain) influences the vigilance, it should be possible to proof changes in the adaptation, which according to hormonal results in insulin hypoglycemia might be registered. The behavior of cortisol ahd STH are the same before and after medication, however a significant higher noradrenalin secretion can be traced after treatment. This effect is rated as a positive influence of the medication on the suprarenal medulla, which on the contrary is regarded as a prolonged part of the brain.