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自然力锻炼是指利用自然环境对人体的影响。自然力锻炼身体的目的在于提高有机体对各种不良气象因素(冷、热、阳光辐射、低气压)的抵抗力。系统地进行自然力锻炼,可预防感冒,有强身作用,可改善血液循环系统功能,使物质代谢正常化。正确进行自然力锻炼能睡得熟·食欲好、自我感觉良好,工作能力提高等。夏季和秋季是开始水浴最适宜的时间。水浴是较强烈的自然力锻炼内容,水的传导性比空气大27倍。经常做水浴可以有效地预防各种冷天气突然对身体的不良影响。一天里,最好早晨进行水浴,也就是起床后或者早操结束后马上进行。水温乃是自然力锻炼的主要因素。刚开始水浴时,一般先用温水,水温摄氏33°-34°。以后降低水温,每经过3-4天降低水温摄氏1°,在1个半-2个月之内逐渐下降,根据自我感和身体健康状况使水温达到摄氏20°-18°,或更低些。进行水浴时,不应该有不快的感觉和寒颤。应当牢记,水浴的主要因素是水
Natural force exercise refers to the use of the natural environment on the human body. The purpose of physical activity is to improve the organism against various adverse weather factors (cold, heat, solar radiation, low pressure) resistance. Systematic natural exercise, can prevent colds, have a physical role, can improve the function of the blood circulation system, so that the normalization of material metabolism. Proper exercise of nature can sleep well, good appetite, feel good about themselves, work ability and so on. Summer and autumn is the most suitable time to start the water bath. Water bath is a more intense force of nature exercise, water conductivity 27 times greater than the air. Water bath can often do a variety of cold weather can effectively prevent the adverse effects on the body. One day, the best morning water bath, that is, after getting up or morning exercises immediately after the end. Water temperature is the main factor in the exercise of nature. The beginning of the water bath, the general first with warm water, water temperature 33 ° C-34 ° Celsius. After the water temperature is lowered, the water temperature is lowered by 1 ° C every 3-4 days. The water temperature gradually drops within 1 and a half to 2 months. The water temperature reaches 20 ° -18 ° C or lower according to self-esteem and physical health . When doing a water bath, there should not be unpleasant feelings and chills. It should be kept in mind that the main factor in water bathing is water