Drinking tea can cause panic, mainly because tea contains caffeine, alkaloids and other active substances, these substances into the body will stimulate the central nervous system, can cause the brain to excite, so that sympathetic nervous tension increases, which will cause the heart to speed up, heart contraction enhanced, resulting in the occurrence of panic. Sometimes drinking tea can also induce the onset of arrhythmia such as premature heartbeat, further aggravating the symptoms of panic. Therefore, for people with heart disease, you need to pay attention to avoid drinking strong tea, and do not drink tea at night, so as not to induce the occurrence of panic, or affect the sleep at night, causing adverse effects on heart disease. If a patient with heart disease wants to drink tea, it is recommended to drink a lighter tea.