Life processes refer to a set of activities occurring in living organisms that help maintain their survival and well-being. Although life processes is an essential vocabulary to describe biological systems, several synonyms can be used to describe the same concept. One synonym for life processes is physiological processes, which indicates the biological activities involved in maintaining and regulating body functions. Another synonym is vital processes, which indicates the critical functions that support life, such as respiration and circulation. Metabolism, cellular processes, and biological functions are also alternative expressions that accurately convey the concept of life processes. Regardless of the terminology used, life processes are fundamental for all living organisms and their sustainability.