In TCM, mental activities are referred as shen (spirit), which is closely correlated with the functional activities of internal organs. It is claimed that the brain receives essence from the organs for nourishment, especially the heart and spleen. Therefore, TCM management of mental health is to assure the good condition of these organs, including nourishing the heart, invigorating the spleen and soothing the liver.
You can see whether the herbal remedies are suitable to you:
http://www.shen-nong.com/eng/lifestyles/tcmrole_aging_mental.html

Of course healthy daily routines are essential, e.g. massage
http://www.shen-nong.com/eng/treatment/massage_acupressure_techniques_ailments.html#1