Summer fatigue and drowsiness may be due to qi deficiency, yang deficiency, etc. Different causes use different regulating drugs. Qi deficiency can use Sijunzi Tang, while Yang deficiency can choose Jin Gui Kidney Qi Pills, and so on. In Chinese medicine, fatigue is one of the manifestations of deficiency, which may be caused by qi deficiency, blood deficiency, or yin deficiency, yang deficiency, etc. Drowsiness, on the other hand, mostly occurs when there is a lack of energy. Drowsiness, on the other hand, is mostly found in qi and yang deficiencies. The specific causes still need to consider other accompanying manifestations. If weakness and drowsiness are accompanied by spontaneous sweating (involuntary sweating during the day, aggravated by the slightest movement), shortness of breath and wheezing, etc., then it is a qi deficiency, and can be treated with medicines such as Sijunzi Tang and Ginseng Ling Baijushu San. If the weakness and drowsiness are accompanied by coldness, cold limbs, white color, white tongue, and sluggish pulse, then it is a yang deficiency and can be treated with Jin Gui Kidney Qi Pill, Xiao Jian Zhong Tang, and so on. Specific medication should be consulted with a doctor.