ganoderma lucidum is sweet and flat. Heart, lung, liver and kidney meridians. Indications: fatigue, cough, asthma, insomnia, dyspepsia, malignant tumor, etc. Animal pharmacology shows that Ganoderma lucidum has inhibitory effect on nervous system, circulatory system has the function of lowering blood pressure and strengthening cardiac contractility, and has expectorant effect on respiratory system. In addition, it also has the functions of protecting liver, improving immune function and resisting bacteria.