After the heart is implanted with a stent, it is appropriate to drink some lighter floral teas and natural drinking teas, and try not to drink prepared teas or chemically brewed teas, as well as milk teas and coffee. For drinking tea, try not to include caffeine. Caffeine intake, although patients tend to refresh not sleepy, but for patients with coronary artery disease stent implantation is very harmful, because caffeine can significantly excite the sympathetic nerve, sympathetic excitement after the heart rate will accelerate, for patients with stents often appear tachycardia, heart burden, and eventually cause cardiac insufficiency, or even heart failure. Therefore, patients with stent implantation should try not to drink modulated beverages, milk tea, coffee, etc. For patients with stents, drinking tea is relatively good for the body because the tea polyphenols in tea can soften blood vessels and delay atherosclerosis, so it is good for coronary heart patients, especially those with stents implanted in coronary heart disease.