In summer, nervousness, depression, and depression can all cause anger. If you can't adjust your emotions well, the liver fire and the heart fire will affect each other and a vicious circle will appear. It can also cause symptoms such as loss of appetite, lethargy, irritability and tinnitus. Good mood and mental state, such as relaxation and happiness, are what people need most in summer, so they can eat more food to clear the fire at ordinary times.