Endogenous Biorhythmicity Reviewed with New Evidence.

摘要

It is demonstrated that a living system possesses a mean, geophysically dependent, annually modulated, diurnal variation in metabolism. Other evidence has indicated that a wide array of kinds of plants and animals possess a fully comparable responsiveness to their pervasive physical environment. Since organisms held in hitherto presumed 'constant conditions' are steadily apprised of the passage of time in terms of phase-angles in the natural cycles of their terrestrial environment, one is no longer compelled to postulate, as most biologists have chosen to believe was necessary, that the 'endogenous' rhythms require intraorganismic timers independently and dependably measuring the approximate durations of days, months and years. An alternative explanation is available. (Author)