In this segment, Dr. Holly talks about what sleep is, why we need it, and what happens inside our bodies when we sleep.; Dr. Holly Phillips; REM; bruxism; circadian clock; insomnia; sleep apnea; sleeping problems; stages of sleep; Press play to begin; From Sleep Apnea to grinding teeth, Dr. Holly talks about some very common problems that keep us from having a restful night's sleep.; Dr. Holly Phillips; REM; bruxism; circadian clock; insomnia; melatonin; sleep apnea; sleep problems; Learn about steps you can take today to get more out of your sleep.; Dr. Holly Phillips; REM; bruxism; circadian clock; insomnia; sleep apnea; sleep hygiene; sleep problems; http://link.brightcove.com/services/link/bcpid1125995016http://www.brightcove.com/channel.jsp?channel=37035948