Our biological clock, known as the circadian rhythm, responds to the day and night cycle, influencing alertness, mood, and sleep, and is primarily driven by exposure to daylight.
This clock aligns with the Earth's natural rhythm, keeping you energised during the day and sleepy at night. Ensure daily exposure to natural daylight or artificial lighting that compensates for the absence of natural light to maintain good sleep quality.
To stay in sync with the Earth's 24-hour cycle, aim for at least two hours of daylight each day.
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