are daily behavioral or physiological cycles that involve the sleep/wake cycle, body temperature, blood pressure, and blood sugar level.

Circadian rhythms.

Explanation:

'Circadian rhythms' are elucidated as the physical as well as behavioral and cognitive changes that accompany a daily cycle which is basically a response to the darkness or sunlight that modulates in the environment and our body also modulates its behavior as per this circadian clock.

As per the question, 'circadian rhythms' would be described as the daily physiological processes or cycles that control the organism's sleep/wake cycle, blood sugar level, body temperature, etc. Such changes are regulated as per the circadian clock which is directly influenced by external cues like sunlight, temperature, etc. A healthy organism must possess these rhythms normally as abnormal circadian rhythm leads to diseases like obesity, sleep disorder, diabetes, etc.

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