Adjective
of or relating to biological processes occurring at 24-hour intervals
Source: WordNetI'm envious of people who can sleep as long as they want. I have the circadian rhythm of a farmer. Moby
I try to manage my day by my circadian rhythms because the creativity is such an elusive thing, and I could easily just stomp over it doing my administrative stuff. Scott Adams
circadian rhythms Source: Internet
A defect in the human homologue of the Drosophila " period " gene was identified as a cause of the sleep disorder FASPS ( Familial advanced sleep phase syndrome ), underscoring the conserved nature of the molecular circadian clock through evolution. Source: Internet
All animals that have been studied show circadian fluctuations in neural activity, which control circadian alternations in behavior such as the sleep-wake cycle. Source: Internet
Also, an individual's blood pressure varies with exercise, emotional reactions, sleep, digestion and time of day ( circadian rhythm ). Source: Internet