天气一变冷似乎特别容易感冒,于是很多人开始考虑如何避免消灭细菌,但是用热水洗手并不会像你想的那样可以杀死细菌。
研究人员说,高温确实能够杀死细菌,但这种沸腾的高温是你无法忍受的。没有任何证据能够证明用热水(40-55°C)洗手能杀死细菌,而且长时间用热水洗手会破坏我们皮肤表面的保护层,使皮肤的抗菌能力降低。
研究人员说,你把手洗干净并且擦干,即使用4°C的水也能杀死细菌。
用热水洗手不仅没有必要,恰恰很浪费,特别是对环境来说。根据研究计算得出的数据,全美国每年8000亿次(热水)洗手加起来将产生600万吨二氧化碳的排放量。
It doesn’t kill germs better than cooler water, but turning tap temperatures high, the US burns carbon equal to the emissions of Barbados.
People typically wash their hands seven times a day in the United States, but they do it at a far higher temperature than is necessary to kill germs, a new study says. The energy waste is equivalent to the fuel use of a small country.
It's cold and flu season, when many people are concerned about avoiding germs. But forget what you think you know about hand washing, say researchers at Vanderbilt University. Chances are good that how you clean up is not helping you stay healthy; it is helping to make the planet sick.
【研究:用热水洗手只是浪费能源 并不能杀菌】相关文章:
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