Speaking of Health with Dr. B


Why We Sleep. Dr. Michael Twery, director of the National Center on Sleep Disorders Research at NIH’s National Heart, Lung and Blood Institute, discusses many facets of sleep and the research being done on the subject at NIH. He says, sleep is a mystery but research is opening lots of doors to knowing much more about it. He says, “Sleep originates with the timing of our biological clock. The biological clock operates in almost all of our tissues.” A particular region of the brain called the suprachiasmatic nucleus, he says, operates as the master biological clock and that is just the beginning of his conversation with Dr. B.