Your Biologic Clock Your Biologic Clock keeps our body rhythms and sleep –wake cycles in synch with the light-day cycle of the earth. It is located in the suprachiasmatic nucleus (SCN) in the hormone control center of the brain, the hypothalamus. When light enters the eye, it activates this part of the brain and reduces production of the sleep hormone (melatonin) produced in the pineal gland of the brain. The light also acts to the release of a variety of other hormones and affects body temperature. Interestingly, we are programmed to cycle every 24.2 hours―but our exposure to light on
Read More