Biochemical signaling refers to the process by which cells communicate with each other through signaling molecules, such as hormones, neurotransmitters, and growth factors. This communication is essential for coordinating and regulating various cellular processes, including growth, differentiation, metabolism, and survival. Biochemical signaling pathways involve a series of molecular events, such as ligand-receptor binding, signal transduction, and gene expression regulation. Dysregulation of these pathways can lead to various diseases, such as cancer, diabetes, and neurodegenerative disorders. Researchers in this area study the mechanisms of biochemical signaling and its implications for health and disease.