Being very tired every day may be due to kidney deficiency, or it may be caused by other reasons, such as spleen deficiency, etc. It needs to be clearly diagnosed by a professional Chinese medicine practitioner in conjunction with systemic symptoms. Kidney deficiency can be seen as soreness and weakness of the waist and knees (a feeling of soreness and weakness of the waist and knees), dizziness and fatigue, whiteness of the face (white color and lack of luster), slippery semen and premature ejaculation, lack of warmth of the limbs, and loss of hearing. Kidney deficiency includes Kidney Qi deficiency and Kidney Yang deficiency. Among them, Kidney Qi deficiency is characterized by weakness and fatigue, and Kidney Yang deficiency is characterized by fear of cold. Spleen deficiency can be seen as loss of appetite, diarrhea and abdominal pain, tiredness of the limbs, and lack of spirit. In the case of Spleen-Qi deficiency, weakness and fatigue (mental exhaustion and physical weakness) is the main manifestation. If there is Spleen-Yang deficiency, cold limbs are the main cause. Possible reasons for being very tired every day are kidney deficiency, spleen deficiency, etc. In addition, excessive mental stress may also lead to fatigue. When discomfort occurs, one should consult a doctor for a clear diagnosis and active management.