How to nap. Good sleep, good learning, good life. Foreword It is everyone's dream to wake up fresh, happy, and ready for action on a daily basis.
Sadly, in the modern world, only a small minority lives that dream. Yet the dream is within reach for most healthy people given: a bit of knowledge, and a readiness to make some lifestyle sacrifice. I hope that this article compiles all the basic ingredients of knowledge that are helpful in accomplishing refreshing sleep. SleepChart: Formula for Healthy Sleep. The cycle of sleep and waking is regulated by the body clock.
Body clock is located in the brain (suprachiasmatic nucleus). The clock has a period of about 24 hours. During a single 24 hour day we have a period of 6-10 hours when we are very sleepy. This is the time when we normally sleep.