All emotions come from the Heart based on Chinese medical theory.  The Heart then sends the emotion out to the various organs.  For example, an imbalance in the Kidney organ causes anxiety, while irritability comes from a Liver imbalance.  Constantly thinking comes from the Spleen, grief from the Lung and mental restlessness from the Heart.  Symptoms from biomedical disorders like anxiety, depression, memory loss, attention disorders, and insomnia can be corrected with Chinese medical treatments that focus on the root cause of the problem.  If the organs are balanced, the emotions will be balanced as well.