2011-9-20 10:01
靈異王
未煮自來水存風險
水是生命的泉源之一,人體缺水容易出現多種不適,嚴重者甚至可因脫水而令器官衰竭以致死亡。對於坊間不少人因貪方便,而直接飲用未經煮沸的自來水,趙醫生認為,由於本港食水已經過多重過濾和加入氯氣,故絕大部分「原水」中的雜質和細菌已被殺死。但部分樓宇的喉管,可能因老化失修而令金屬內層剝落,令水中重金屬含量增加。故如察覺到自來水有異味或顏色,建議安裝濾水器來過濾這些重金屬。但即使濾水器如何昂貴,仍難保證可完全隔絕自來水中的細菌,因此仍應將水完全煮沸才飲用,以殺死水中餘下的少量細菌,「已知的細菌,全都會於攝氏100度的水溫下死亡,所以將水煮沸後已適宜飲用。」趙稱。
另一方面,對於有長期飲用樽裝飲料習慣的市民,趙醫生認為,平日生活上難以時刻煲水飲用,適量飲用樽裝飲料補充水分並無問題,但不應長時間依賴,以免吸收過量的糖分或鈉、鉀、鈣等礦物質,令身體失去平衡,損害健康
2011-10-13 05:38
o025f5238u
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