Side Effects of a Lack of SleepDo you suffer from sleep deprivation? Most teenagers need 8-12 hours of Lack of sleep can cause delayed reactions or even learning Prolonged loss of sleep occurs for physical and mental reasons and has harmful physical and mental effects to the human Prolonged sleep is caused by many different functions of the An important cause of prolonged sleep is a teenagers biological phase-delay or a tendency to fall asleep and wake up at different Changes that occur at puberty in the internal body clock governing their circadian biological rhythms can cause them to sleep irregularly(Johnson， 3)Another good reasons why teenagers do not get enough sleep is because they simply do not make time for Some schoolwork， sports， jobs， girlfriends or boyfriends may take up most of a teenagers time or cause them to have stressful sleep(Johnson 3)Sleep deprivation can cause slow reactions of It may also cause headaches and nightmares more The mind will fall asleep if it cannot get enough sleep causing it to not function Some side symptoms of chronic lack of sleep are feeling fatigue or depression as body becomes drained (Haynes)A major problem caused by sleep deprivation is behavioral changes such as: irritability， short temper， impatience， and stressful situations with more anger or sadness， also can cause more fear than they would normally If you continue to have prolonged lack of sleep your immune systems will begin to break down and become unstable to fight diseases (Haynes) To show how this is caused the researcher has done a study on how much sleep he/she got and how they felt that Sleep deprivation has many harmful effects and there are some reasons you cannot stop prolonged lack of Sleep is essential to the studying and learning if you do not get enough sleep the mind can shut down from not having enough rest and can harm the human 这是另外一篇Lack Of SleepIt has always recommended that getting at least eight hours a sleep a night will make your life less Sleep deprivation is generally the cause of sleep disorders such as apnea， narcolepsy， and Everyone knows without the proper amount of sleep， the mind will be groggy the next day， and as a result， many more mistakes will be made， meaning that you should get a full night's rest before taking a test or a little nap before a long drive in a But scientists are beginning to realize that sleep is not just a mental recharge， but also important for the body as When a person sleeps， the body and mind are working just as hard as when the person is awake， correcting chemical imbalances， assuring proper blood sugar levels for the next day， and maintaining the The effect of lack of sleep on the body is often worse than just not feeling like you got any sleep the next There can be serious health issues that result from not getting proper The most obvious side effect of a lack of sleep is not having energy the next However it is more than feeling less than our best， the body actually performs less efficiently when we are tired or not Performance， productivity， memory， and a whole lot of other things are all reduced when our body is running on less sleep than we Physiologic studies suggest that a sleep deficit may put the body into a state of high alert， increasing the production of stress hormones and driving up blood pressure， a major risk factor for heart attacks and Other studies have found that sleep influences the functioning of the lining inside blood vessels， which could explain why people are most prone to heart attacks and strokes during early morning The body also needs rest to repair tissue， cope with stress， and recharge the immune A lack of sleep hampers these functions in the The ability to handle stress and fight off illness lessens when we fail to get
It is known that some students have too much homework， and as a consequence of this they don't get enough sleep during the night， then the next day they don't have enough energy to focus during Also， students don't have enough free time for social activites such as visiting the sports clubs， as a result， most of them can feel a lack of motivation when it comes to revision and completing homeworks， as well as becoming more and more 目前很多学生都有大量的作业，因此他们晚上睡不够，然后下一天没有足够的精力在课堂上集中精神还有，学生们没有足够的自由时间去参加社交活动，例如参见运动社团，因此他们在复习和做作业时会感到没有动力，还有变得越来越宅
