The Suprachiasmatic Nucleus (SCN) Is the Master Circadian Clock The suprachiasmatic nucleus is our master circadian clock. The SCN is also a seasonal clock that measures the length of daylight.

Within the hypothalamus lies the suprachiasmatic nucleus (SCN), which regulates sleep and wake cycles. During the light cycle, a series of mechanisms originating from retinal ganglionic cells to ...

The suprachiasmatic nucleus (SCN) is the central circadian pacemaker. The SCN is located in the hypothalamus and is regulated by light signals from the eye.

Our sleep cycles are thought to be regulated partly by the suprachiasmatic nucleus, a 2mm-wide structure in the brain that has now been imaged for the first time with a brain scanner ...

To the point: The body's central internal clock is located in the suprachiasmatic nucleus (SCN) of the brain. Along with other internal clocks—such as those in the heart and liver—it regulates various ...