根据医学统计,脑中风绝大部分在清晨起床时发生,而经过实验,在夜间适量饮水可有效地防止发生脑中风。中老年人夜间体内缺水会使血液粘度升高,血小板凝聚力亢进,使原来就粥样硬化的血管更易产生栓塞。当血栓脱落在脑动脉、冠状动脉及其分支内时,便会发生缺血性中风或心肌梗塞,危及生命。 According to medical statistics, the vast majority of stroke in the early morning wake up, but after an experiment, adequate drinking water at night can effectively prevent the occurrence of stroke. In the elderly, lack of water at night will make the blood viscosity, platelet cohesion hyperthyroidism, so that the original vascular atherosclerosis is more likely to have embolism. When thrombus sheds in the cerebral arteries, coronary arteries and their branches, ischemic stroke or myocardial infarction can occur, threatening life.