Can’t Sleep?
Published by Dr. Eric Berg on 06 May 2008
I can’t tell you how many people just cannot get enough restful quality sleep at night. In this article, I’d like to cover the main reason why.
Your sleep is controlled by hormones. These hormones are affected by darkness and light. The entire cycle is called the circadian rhythm. The term circadian comes from the Latin circa, “about,” and dies, “day,” meaning literally “about a day.” You typically go through four 90-minute cycles of sleep during the night, each one ranging from light sleep to deep, rejuvenating sleep. If everything is working, you can go to sleep, stay asleep, and wake up feeling alert and refreshed.
