现代医学研究证明,科学喝水是人体健康的保证。因为人体的各种新陈代谢,必须有水的参与。在正常情况下,人体的生理活动,每天需要消耗2500毫升的水。这些水除从日常饮食中得到外,还要通过喝水来补充。一般每个成年人在一天中需要喝水1公斤。特别是老年人,体细胞的含水量减少30～40%,容易产生脱水现象,造成皮脂腺分泌减少,皮肤干燥,皱纹增多,衰老加快。因此,老年人更应该经常喝水,促进血液循环,增强 Modern medical research proves that scientific drinking is the guarantee of human health. Because of the body’s various metabolism, there must be water involved. Under normal circumstances, the body’s physical activity, need to consume 2500 ml of water daily. Apart from the daily diet, the water is supplemented by drinking water. In general, every adult needs to drink 1 kilogram of water a day. Especially the elderly, somatic cells reduce the water content of 30 to 40%, prone to dehydration, resulting in reduced secretion of sebaceous glands, dry skin, wrinkles, increased aging. Therefore, the elderly should drink more water, promote blood circulation, enhance