Patients with myocardial infarction should not drink coffee. After suffering a myocardial infarction, it is crucial to immediately go to the hospital for emergency treatment. Failure to receive timely treatment can lead to serious complications, including heart failure, arrhythmias, and cardiogenic shock. Patients with myocardial infarction need to rest, quit smoking and drinking, and avoid eating irritating foods. Coffee contains caffeine, which stimulates the sympathetic nervous system. Consuming coffee can excite patients, increase heart rate, and lead to increased oxygen consumption by the heart, which increases the burden on the heart and adversely affects the condition.