The efficacy and role of Polygonum multiflorum Extract: 1. Anti-aging effect 2. Impact on the immune system: Polygonum multiflorum can delay the thymus degeneration that occurs with aging, which may be an important mechanism for delaying aging and improving the body's immunity. 3. Hypolipidemic and anti-atherosclerotic effects 4. Myocardial protection 5. Liver protection 6. Neuroprotective effect 7. Antibacterial effect