2. Improve immunity: Farfarb contains a variety of active ingredients that can activate the immune system and improve immunity.

3. Antioxidant: Farfarthing is rich in polyphenolic compounds, which can inhibit cell oxidation and reduce free radical damage.

4. Enhance memory: Farfarthing has a regulatory effect on the nervous system and can enhance the brain's memory.

5. Relieve neurasthenia: Yuanzhi can reduce anxiety, nervousness, irritability and other emotions, relieve the symptoms of neurasthenia.

6. Helping digestion: Yuanzhi can promote gastrointestinal peristalsis, enhance digestion and relieve gastrointestinal discomfort.

In short, the main efficacy and function of farzhi is to regulate the nervous system, improve immunity, antioxidant, enhance memory, relieve neurasthenia, and help digestion. Therefore, Yuanzhi is commonly used to treat insomnia, anxiety, indigestion, neurasthenia and other symptoms.