求翻译：早操的危害有：一，刚从睡眠中醒来，人的体温较低，特别是关节囊不能很好的分泌润滑物质，做跑步等运动，会造成关节的劳损！ 第二，早晨的空气质量是较差的，易造成呼吸道感染，第三，.空腹运动对身体也有些不利影响,曾有运动员空腹晨跑猝死的报道, 为了我们的生命安全，我们坚决反对早操是什么意思？

Morning exercises hazards are: First, just sleep, wake up, people's body temperature low, especially in the joint capsule secretion of lubricating substances can not be good, to do sports such as running, can cause strain on the joints! Second, the morning air quality is poor, could easily lead to r

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The morning exercise harm includes: One, just woke from the sleep, human's body temperature was low, specially the ligamentum capoulare could not the very good secretion lubes, do jogs and so on the movements, could create the joint the strain! Second, the morning air quality is bad, easy to create

Harm of morning exercises: just woke up from sleep, man's lower body temperature, particularly secretion of joint capsule not well lubricated material, doing sports such as running, can cause joint strain! Secondly, in the morning air quality is poor, easily give rise to respiratory tract infections