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Molecular Chronobiology

Meaning

Molecular chronobiology is the specialized field of study investigating the biochemical and genetic mechanisms that precisely govern the body’s internal biological rhythms, such as the circadian, ultradian, and infradian cycles. This discipline focuses on the core clock genes and their resultant protein products, which drive the essential 24-hour oscillations in cellular function, hormone secretion, and metabolic activity across all tissues. It provides the fundamental scientific basis for understanding how the timing of biological events impacts physiological health and disease susceptibility.