Health and Sleep
With the rapid development of modern technology, people care more about material needs than spiritual. Therefore, health becomes the most important factor of our lives, and sleep plays a very important role in everyone’s health. People should lead a healthy lifestyle, especially, have a great sleep. Sleep is a naturally recurring state characterized by reduced or absent consciousness, relatively suspended sensory activity, and inactivity of nearly all voluntary muscles. It is distinguished from quiet wakefulness by a decreased ability to react to stimuli, and is more easily reversible than being in hibernation or a coma. Sleep is a heightened anabolic state, accentuating the growth and rejuvenation of the immune, nervous, skeletal and muscular systems. Sleep is a key part of a healthy lifestyle. Like eating right and exercising, sleeping well is essential to feeling your best during the day. It affects how you feel, your relationships, your productivity and your quality of life. While you sleep, your brain goes to work, consolidating the day's learning into memory and reenergizing the body.
While we may not often think about why we sleep, most of us acknowledge at some level that sleep makes us feel better. We feel more alert, more energetic, happier, and better able to function following a good night of sleep. However, the fact that sleep makes us feel better and that going without sleep makes us feel worse only begins to explain why sleep might be necessary.
It may seem obvious that sleep is beneficial. Even without fully grasping what sleep does for us, we know that going without sleep for too long makes us feel terrible, and that getting a good night's sleep can make us feel ready to take on the world. One way to think about the function of sleep is to compare it to another of our life-sustaining activities: eating. Hunger is a protective mechanism that has evolved to ensure that we consume the nutrients our bodies require...
Please join StudyMode to read the full document