Figure 1: Time- and light-dependent phosphorylation of histone H3 in the suprachiasmatic nucleus. Figure 2: Photic stimulation did not induce H3 phosphorylation in the pineal gland and in the retina.

One long-standing model of the rodent circadian clock describes it as a complex pacemaker consisting of two mutually coupled oscillators differentially affected by light, with one synchronized to ...

Melatonin from supplements targets the suprachiasmatic nucleus (SCN) of the hypothalamus in your brain to promote sleep. The ...