Circadian preference refers to an individual's natural inclination toward being active during certain times of the day, often categorized as "morning larks" or "night owls." This preference is influenced by the body's internal clock, known as the circadian rhythm, which regulates sleep-wake cycles and other physiological processes over a 24-hour period. People with a morning preference tend to feel more alert and productive in the early hours, while night owls may experience peak energy and focus later in the day. Understanding one's circadian preference can help optimize daily routines, improve sleep quality, and enhance overall well-being.