This microcredential will enhance your comprehension of regular newborn transitional events and the subsequent maintenance of homeostasis. In neonatal circles, you will often hear the chant, “pink, warm, and sweet,” which relates to the fundamental principles of oxygenation, thermoregulation, and metabolism. In this microcredential, you will focus on the underlying physiology associated with these three basic principles and the knowledge that skilled members of neonatal care teams require to support a baby’s birth and transition to extrauterine life. This microcredential is the third in a series of three that corresponds to the unit of study 071 Applied Neonatal Physiology.