Abstract
In this study, I propose a hypothesis about the origin of emotions and consciousness stemming from intercellular communication during the integration of multicellular organisms. Multicellular organisms are limited in their ability to respond directly to stimuli due to the varying reactions of different cells. Cells must coordinate their actions with each other, communicating their homeostatic states through chemical and electrical signals. The combination of homeostatic signals from individual cells creates a subjective and differentiated evaluation of the state of a multicellular organism as primary emotions, enabling it to transition from automatic reactions to active optimization behavior based on competing motives. Thus, I assert that consciousness is a function of communication among living beings (initially cells), and it attained its subjective form by integrating a multicellular organism into a single subject.
