白開水

作者:水商網
白開水含義:

白開水又名涼白開、凍滾水,是平常生活中人們喝得最多的食用水。它不含卡路里,不用消化就能為人體直接吸收利用,對人體的生理機理具有很重要的調理作用。一般建議喝30攝氏度以下的溫開水最好,這樣不會過于刺激腸胃道的蠕動,不易造成血管收縮。早晨空腹喝上一杯溫熱的白開水對身體百益而無一害,對中老年人來說,不僅能稀釋血液,降低血粘稠度,促進血液循環,還能減少血栓危險,防止心臟病"高峰期"的心腦血管疾病的發生。對年輕人來說,能對因晚上睡眠后體內水分由于生理上的散發而減少起到解渴、利尿的作用,也能使皮膚變得光滑細嫩。

白開水相關知識:

含糖飲料會減慢腸胃道吸收水分的速度,長期大量喝飲料,對人體的新陳代謝會產生一定不良影響。像橙汁、可樂等含糖飲料口感雖好,但不宜多喝,每天攝入量應控制在一杯左右,最多不要超過200毫升,而對于糖尿病人和比較肥胖的人來說,則最好不要喝飲料。現在國內的自來水都符合生活飲用水的標準,飲用煮沸了的自來水是安全的。
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