Cell communication is the process by which cells send and receive signals to communicate with each other. This communication allows cells to coordinate their activities and respond to changes in their environment. Cell communication can occur through various mechanisms, including direct cell-to-cell contact, signaling molecules such as hormones or growth factors, and communication through specialized structures like gap junctions or synapses. Understanding how cells communicate is important for studying a wide range of biological processes, including development, immune response, and disease progression. Researchers in this field investigate the molecular mechanisms involved in cell communication and how disruptions in these processes can lead to diseases such as cancer or autoimmune disorders.