“How did you sleep?” Common, yet thought-provokinguttered each morning in most countriesacross the globe. But there really is much more to it than simple courtesy. Getting adequate sleep is vital to your health and welfare. To understand how sleep affects you, it is important to know that as you sleep, you pass through a cycle of different phases, each with its own unique qualities. REM (rapid eye movement) sleep has been the subject of inquiry and interest for decades. What is the ... [Read More]