Core Body Temperature
The internal temperature of the human body, which fluctuates according to a roughly 24-hour circadian rhythm, declining during sleep and rising again in the morning. It is an important physiological signal by which the biological clock regulates awakening.
Timeline (last 90 days)
Human core body temperature follows a roughly 24-hour circadian rhythm, gradually declining around sleep onset, reaching its lowest point around 4-5 a.m., and then beginning to rise.
The process of core body temperature rising is synchronized with the secretion of waking hormones such as cortisol, and is an important physiological basis for the biological clock's wake-up signal.
The dim light melatonin onset (DLMO) is regarded as the gold standard for assessing the biological clock, and the core body temperature minimum is also a commonly used indicator, but both are difficult to collect frequently in a home setting.
All Facts (3)
Human core body temperature follows a roughly 24-hour circadian rhythm, gradually declining around sleep onset, reaching its lowest point around 4-5 a.m., and then beginning to rise.
50%UnverifiedThe process of core body temperature rising is synchronized with the secretion of waking hormones such as cortisol, and is an important physiological basis for the biological clock's wake-up signal.
50%UnverifiedThe dim light melatonin onset (DLMO) is regarded as the gold standard for assessing the biological clock, and the core body temperature minimum is also a commonly used indicator, but both are difficult to collect frequently in a home setting.
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