How Living in Total Darkness Sabotages Your Sleep
August 26, 2022
Jonathan Emens, M.D., talks with How Stuff Works about how people's bodies adjust into new sleep-wake patterns when they are isolated from sunlight: "You can think of it like your heart — the pacemaker in your heart spontaneously generates the rhythm in electrical impulses that ultimately cause your heart to beat. We similarly have a pacemaker in our brain — the suprachiasmatic nuclei (SCN) in the hypothalamus spontaneously generate a near-24-hour rhythm."