...F.W. Turek Biological rhythms play an important role in the regulation of many different physiological systems, including the reproductive system. The 24-hour clock system plays a role in regulating the production, release, synthesis and action of reproductive hormones and in the timing of critical...

... cycle. Exogenous MLT is able to influence the endogenous secretion of the hormone according to a phase-response curve. There are practical implications for this property in situations when biological rhythms are disturbed (jet-lag syndrome, delayed sleep phase syndrome, insomnia in blind people, shift...