In studies where research subject spent several days without any access to information about day or night,their bodies followed a 25-hour circadian rhythm cycle.

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Studies have shown that when research subjects spend several days without any access to information about day or night, their bodies tend to follow a 25-hour circadian rhythm cycle. This means that their internal clock is slightly longer than the typical 24-hour day, leading to a slightly delayed sleep-wake cycle.

In Studies Where Research Subject Spent Several Days Without Any