a Departamento de Medicina Celular y Molecular, Centro de Investigaciones Biológicas (CIB) , Consejo Superior de Investigaciones Científicas (CSIC) , Madrid , Spain.
Crit Rev Food Sci Nutr. 2015;55(12):1633-41. doi: 10.1080/10408398.2012.692737.
The role of hydration in the maintenance of health is increasingly recognized. Hydration requirements vary for each person, depending on physical activity, environmental conditions, dietary patterns, alcohol intake, health problems, and age. Elderly individuals have higher risk of developing dehydration than adults. Diminution of liquid intake and increase in liquid losses are both involved in causing dehydration in the elderly. The water used for drinking is provided through regular public water supply and the official sanitary controls ensure their quality and hygiene, granting a range of variation for most of its physical and chemical characteristics, being sometimes these differences, though apparently small, responsible for some disorders in sensitive individuals. Hence, the advantages of using bottled water, either natural mineral water or spring water, are required by law to specify their composition, their major components, and other specific parameters. It is essential to take this into account to understand the diversity of indications and favorable effects on health that certain waters can offer.
水合作用在维持健康方面的作用正日益受到重视。每个人的水分需求都有所不同，取决于身体活动、环境条件、饮食模式、酒精摄入、健康问题和年龄等因素。老年人比成年人更容易出现脱水的风险。老年人脱水的原因包括液体摄入减少和液体流失增加。饮用水通过常规公共供水提供，官方卫生控制措施确保其质量和卫生，从而使大多数物理和化学特性都有一定的变化范围，尽管这些差异很小，但有时会导致敏感人群出现一些紊乱。因此，法律要求瓶装水（无论是天然矿泉水还是泉水）都必须说明其成分、主要成分和其他特定参数。必须考虑到这一点，才能理解某些水能够提供的不同的指示和对健康的有利影响。
