Also known as: CR., CR...
CR has various meanings in the Health category. Discover the full forms, definitions, and usage contexts of CR in Health.
A circadian rhythm is any biological process that displays an endogenous, entrainable oscillation of about 24 hours. These 24-hour rhythms are driven by a circadian clock, and they have been widely observed in plants, animals, fungi, and cyanobacteria.
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