Director Yang - Tongue diagnosis sharing: short battery life, not long-lasting, palpitation, chest tightness, lack of energy Director Yang - Tongue diagnosis sharing: short battery life, not long-lasting, palpitation, chest tightness, lack of energy Director Yang - Tongue diagnosis sharing: short battery life, not long-lasting, palpitation, chest tightness, lack of energy Director Yang - Tongue diagnosis sharing: short battery life, not long-lasting, palpitation, chest tightness, lack of energy Director Yang - Tongue diagnosis sharing: short battery life, not long-lasting, palpitation, chest tightness, lack of energy