Drinking Pu'er tea can cause physical effects such as vasodilation, lower blood pressure, slower heart rate, and decreased cerebral blood flow. Hence, it has a good therapeutic effect on patients with hypertension and cerebral arteriosclerosis. It can also nourish and protect our stomach. Drinking Pu’er tea with a suitable concentration will not causing any stimulating effect on the stomach and intestines. The thick, smooth, and mellow Pu'er tea enters the human stomach and forms a film attached to the surface of the stomach which will act as a beneficial protective layer.