2017高三英语二轮复习江苏专用完型填空+阅读理解35_高考复习指南

2017高三英语二轮复习江苏专用完型填空+阅读理解35

　　Sleeplessness can be caused by many different things.Most people experience sleeplessness for a short period of time due to an outside stimulus such as stress，improper diet，a poor sleeping environment or an acute medical concern such as the flu.Once the stimulus passes，the ability to sleep will usually return.Chronic sleeplessness may be caused by ongoing health concerns such as the physical pain of arthritis or the emotional pain of anxiety and depression.

　　Prolonged sleeplessness can have a negative effect on the way the body performs daily tasks.Those that suffer from sleepless nights may find themselves feeling drowsy or fatigued during the day.The ability to concentrate or focus on a task diminishes and you are less mentally alert.Because the body needs sleep to support a healthy immune system，those that are sleepdeprived may be more susceptible to both acute and chronic illnesses such as high blood pressure and diabetes.

　　Sleeplessness not only takes a toll on your physical self but also your emotional wellbeing.Being unable to sleep well for a few nights may only produce minor irritability.However，if sleeplessness becomes chronic，the price could be much higher in the form of anxiety，depression and possibly substance abuse.Those with chronic sleeplessness may turn to controlled substances such as sleeping pills and alcohol to aid them in their quest for a good night's sleep.

　　There are numerous home remedies for mild sleeplessness.Prepare your body for sleep by avoiding caffeinated drinks such as tea or coffee before bed.Don't exercise strenuously before bedtime；instead do something relaxing such as meditate or take a warm bath.Go to bed only when you feel sleepy and not because of a selfappointed bedtime.Finally，create a favorable sleeping environment by removing stimulants from your bedroom such as extra lighting or a television.If you still cannot find relief，it may be time to visit your physician for help.A sleep study will be done that can help to determine the cause of the sleeplessness and possible solutions.