Chronobiology is the study of biological rhythms in living organisms, including humans. There are several synonyms for the word that can be used in scientific and everyday conversation. One synonym is "biological timing," which refers to the body's innate ability to regulate biological processes based on time of day or night. Another synonym is "circadian biology," which focuses specifically on the 24-hour biological rhythm that governs sleep, hormone production, and other bodily functions. Additionally, "biological rhythms" or "chronorhythms" can be used to describe the same phenomenon. No matter which term is used, understanding chronobiology is crucial for optimizing health and well-being.