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民间有这样一句俗语:“春困秋乏夏打盹”。虽然说的都是疲劳,但原因却各有不同。春困、秋乏主要是人体生理机能不能随着自然气候变化而发生的一种不适应现象,是季节变化的结果。而夏季的倦怠则往往是人体缺钾造成的,原因有三:首先,人体在夏季出汗量大(当外界温度高于33℃时,出汗是人体主要散热方式),汗液中除了水分和钠以外,还含有一定量的钾离子;其次,夏季人们常常食欲下降,从食物中摄取的钾离子相应减少,于是造成钾的摄入不足;第三,
Folk have such a saying: “Spring sleepy summer nap”. Although it is all about fatigue, the reasons are different. Spring sleepy, autumn lack mainly is the physiological function of the human body can not occur with the natural climate change is not a phenomenon, is the result of seasonal changes. The summer burnout is often caused by the human body potassium deficiency for three reasons: First of all, the human body in the summer sweating volume (when the outside temperature is higher than 33 ℃, the body is the main way of sweating), sweat in addition to water and sodium , But also contains a certain amount of potassium ions; Second, the summer people often loss of appetite, the corresponding reduction in food intake of potassium ions, resulting in inadequate intake of potassium; Third,