The nutrition instinct is regulated by central nervous system, hypothalamus, rhinencephalon, lobus limbicus, corpus amygdaloideum and cortex cerebri. These centers constantly get impulses informing about nutrition situation of tissues. There are: psychical, nervous, humoral and metabolic impulses, which are organized in central nervous system. Central nervous system sends the centrifugal impulses to regulate the mechanisms. There is dependence present between neurogenic, momentary and longwave regulation and thermogenesis.