Herbs that tonify yang energy include Epimedium, Semen, Radix et Rhizoma Gastrodiae, and so on. 1. Epimedium: it has the effect of tonifying kidney yang, strengthening muscles and bones, and dispelling wind-dampness, and is mostly used for kidney yang deficiency, impotence and spermatorrhea, impotence and weakness of muscles and bones, rheumatism and paralysis, and numbness and constriction, etc. It has the effect of warming the kidney and strengthening yang, dispelling cold and dampness. 2. Xianmao: has the effect of warming the kidney and strengthening yang (warming and tonifying yang qi in the kidney), dispelling cold and removing dampness. It is used for treating impotence and coldness of essence, frequent urination, cold-dampness paralysis, impotence and weakness of muscles and bones, abdominal pain and cold diarrhea. 3. Radix Pilosulae: Radix Pilosulae has the efficacy of restoring yang to save the body (by warming yang qi to save fainting, unconsciousness, etc.), tonifying fire to help yang (replenishing the body’s yang qi), dispersing cold and relieving pain (by dispelling the body’s cold evil to relieve pain). The drug is mainly used for Yang deficiency, death of Yang with a weak pulse, conditions of weak Yang, and for conditions such as wind-cold-dampness paralysis (paralysis of the limbs caused by the three evils of wind, cold, and dampness encroaching on the human body) and pain in the joints. The efficacy of herbs for Yang qi is different, and should be taken under the advice of a doctor, not on your own.