Cellular communication is the field of study that focuses on how cells communicate with each other in organisms. This communication is vital for coordinating various processes in the body, such as development, growth, and response to external stimuli. Cellular communication involves the exchange of signals and molecules between cells through various mechanisms, including direct cell-to-cell contact, signaling molecules, and receptor proteins. Understanding cellular communication is crucial for advancing our knowledge of how cells function and interact, as well as for developing new therapies for diseases related to cell communication dysfunction.