Coffee is not recommended for patients with heart discomfort. Coffee has an excitatory effect that excites the cerebral cortex may lead to sympathetic excitation, causing rapid heartbeat, elevated blood pressure, and increased myocardial oxygen consumption may aggravate heart disease. In order to be safe, patients with heart discomfort should not drink coffee. Drinking coffee contraindications: patients with premature beats, heart disease patients may not drink coffee, coffee can cause tachycardia, is not conducive to the recovery of heart disease patients. Infants and young children are not suitable for drinking coffee, pregnant women, lactating women are not suitable for drinking coffee, do not drink coffee in large doses, do not drink coffee before going to bed. The heart is not comfortable patients drink coffee appeared to aggravate the condition should promptly consult a doctor, do not self-medication, under the guidance of a physician in accordance with standardized treatment.