Circadian rhythms and sleep–circadian interactions
Abstract
A human’s internal biology is timed to the 24 h light and dark cycles. This synchronizes processes, such as metabolic, digestive, and learning processes with the time of day that they might occur. This way, the internal molecular activities can be carried out efficiently. Many circumstances involving both work and social relationships may conflict with the body’s internal schedule. One example is that our cognitive performance is not stable over the day and the output of circadian rhythms governs this performance. In addition, the sleep pressure interacts with the circadian rhythms to determine the final performance level of the individual. Numerous health and psychological problems ...
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