The body's circadian rhythm plays a vital role in regulating sleep quality. A natural sleep-wake cycle influences various bodily functions, including hormone release, metabolism, and body temperature. Disruptions to this rhythm, such as irregular sleep patterns or exposure to blue light at night, can result in poorer sleep quality, leading to fatigue and diminished cognitive function during the day. Consistent sleep routines that align with the circadian rhythm can promote restorative sleep, improving energy levels, mood, and overall well-being. Prioritizing a healthy sleep schedule is essential for optimal health.