睡前　据专家研究，老年人餐间睡前不饮水，可导致血浆浓缩。血液粘稠度升高和血小板凝聚能力亢进，从而可促进体内血栓形成。对于老年人或患心脑血管缺血性疾病的人，晚间睡前饮杯水，可以预防致死性梗塞。不少老年人不习惯睡前饮水，怕夜间起床排尿。实际上老年人膀胱萎缩，? Bedtime According to expert studies, elderly people do not drink before bedtime, can lead to plasma concentration. Blood viscosity and platelet aggregation increased hyperthyroidism, which can promote thrombosis in vivo. For the elderly or people suffering from cardiovascular and cerebrovascular ischemic disease, drinking glass of water at bedtime before going to bed, you can prevent fatal infarction. Many elderly people are not used to drinking water before going to bed at night, urinating. In fact the elderly atrophy of the bladder,?