Why lunch more sleep more trapped 
 
 
Du Chang hao Chongqing dianjiang county hospital 
 
 
China's traditional Chinese medicine to 

    Sorching summer especially easy to feel sleepy, so most people like to sleep by lunch time. Research has shown that nap sleep is one of the highest efficiency, it can not only keep the brain awake, and after lunch and will greatly improve work efficiency.
 
    But at the same time we also have experience greatly, if time is too long, will feel more sleep more. At this moment, if forced to get up will feel dizziness, the whole body uncomfortable, when could not concentrate for a long time, work, study efficiency also big give discount.
 
    Why is this? It turns out that the average person in sleep more than 30 minutes, then by shallow enter deep sleep sleep stages, then the brain of the central nervous inhibition process deepens, many capillaries in the brain tissue temporarily shut down, flowing through the brain blood relative reduction. If you wake up at this time, because the inhibited the cerebral cortex is not lifted, close the capillary has not opened, the brain will appear relatively insufficient blood supply, temporarily cause present plant nerve function disorder, so feel sleepy all the more in the whole body uncomfortable. This kind of symptom short more than ten minutes, long, more than half an hour to disappear.
     
    Therefore, summer time shoulds not be too long, with 10 ~ 30 minutes advisable. This can not only improve the work efficiency, also can effectively prevent coronary heart disease. Research has shown that siesta 30 minutes a day, can make more balanced hormone secretion, lower the incidence of coronary heart disease (CHD) is obvious.
 
 
 
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