每人每天至少应摄入1200ml的水。
但由于环境、气候、运动量、以及个人体质的差异,需水量也会不同。若是夏季或初秋炎热天气,长时间待在户外,出汗较多,最好每天饮水2000-3000ml。而冬季出汗少每天1200-1500ml即可。
所以每日8杯水,应选择每杯200ml较好。
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扩展资料:
水喝多了,也很严重:
1、水中毒
人体若是大量饮水,容易导致体内钠离子流失,严重的会引起水中毒。正常饮水的朋友不必担心,但若常做重体力劳动、体育训练的朋友,一定要注意适当喝些淡盐水。
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2、湿气重
水喝多了,会影响脾胃,有些朋友体型偏胖,舌苔厚,体内湿气严重,若是喝了过量的水,反而加重体内湿气,影响脾胃功能,时间长了还会危及心脏,影响血压。
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3、心肾受损
过量喝水,会促使人体分泌“抗利尿激素”,增加尿液的排泄次数,容易使体内钠、钾、氯等电解质流失。若是适当饮水,可以帮助肾脏排毒;但若是过量,则会加重肾脏负担,甚至心肾皆损,严重危害健康。
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健康饮水:
1、少喝冰水、不喝过烫的水
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2、早起喝杯温开水、每天少量多次喝水
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3、还有最重要的一点:喝的水一定要干净!干净是保证饮水健康的第一步。
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参考资料来源:/mr.baidu.com/petzbkn?f=cp"target="_blank"title="百度百科-饮水">百度百科-饮水