Some middle-aged people and old people have the custom which a kind of television relies on, watches the television to doze off frequently, actually, this is in the overtired reason besides the body, possibly is the cerebrum oxygen deficit causes.

    Especially some build are fat and have middle-aged person and old person of hypertension, diabetes and hyperlipemia shape, the itself cerebrum oxygen consumption capacity are many, nasopharyngeal department fat stack, if looked when television for a long time does not move, is very easy to present the brain ventilation to be insufficient.

    In addition, in the television does not close in situation to go to sleep, the cerebrum is unable to enter the deep sleep, the blood pressure and palpitation is not steady, if meets the sudden sound to awaken, is easier to have dizziness and tinnitus even is looks pale and other performance, needs steady some time to be able gradually to restore.

    Therefore, guaranteed that sufficient effective sleep, should better switch off before resting the television, creates a peaceful sleep environment. (People\’s Liberation Army 305 hospital old age branch physician-in-charge Zhao Jinjing)