Gui Yuan, also known as longan, is a blood tonic herb that is warm in nature and sweet in taste, and has the effect of nourishing the heart and spleen and benefiting qi and blood. In terms of its efficacy alone, it is effective in nourishing the heart and spleen, and for insomnia caused by deficiency of the heart and spleen. However, it is warm in nature and can only be used for patients with heart and spleen Yang deficiency, while generally speaking, patients with chronic insomnia are prone to depletion of Yin and Jin, which is Yin deficiency, so using cinnamon is exactly the opposite. Therefore, you may want to consult a doctor before taking the various supplements at home, remember that supplements have risks and need to be taken with caution.