. "Chronobiology is a field of biology that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar- and lunar-related rhythms. These cycles are known as biological rhythms. Chronobiology comes from the ancient Greek \u03C7\u03C1\u03CC\u03BD\u03BF\u03C2 (chr\u00F3nos, meaning \"time\"), and biology, which pertains to the study, or science, of life."@en . .