Why Do We Wake Up in the Morning?
To answer this we must go back to the answer to the question, “What makes us go to sleep?” We go to sleep in order to secure the rest which our body and brain need to build up the parts which have been destroyed during our active work or play.
We wake up naturally when we have had sufficient rest. We wake up naturally, however, only when the destroyed parts of the body have been replaced. Other things may waken us—a noise of any kind, loud or slight, a startling dream or a moving thing that disturbs our sleep—according to how fully we are asleep. It is said that sometimes only parts of the body are asleep; that we are not always all asleep when we appear to sleep, and that we dream because some part of the body is awake or active. This is probably true. Now then, when all of anyone of us is sleepy, we go into what is called a deep sleep and at such times only something out of the ordinary would awaken us. Gradually, however, various parts of the body become rested and they are said to wake up, and finally when all of us is rested, we naturally wake up all over. If you are healthy and sleep naturally, in a place where you cannot be disturbed by noises or movements of others, you should be “wide awake” when your eyes open and be ready to get up at once. If you feel like turning over for another snooze, when it is time to get up, you did not go to bed as early as you should have done, or else some part of you did not get the required amount of sleep it should have had.