Patients with coronary heart disease can drink tea, but it is advised to consume light tea in daily life rather than strong tea. Specifically for coronary heart disease, green tea is more suitable as it helps prevent the condition. However, for those with coronary heart disease who also suffer from anemia and poor spleen and stomach function, it is recommended to limit green tea consumption. Additionally, drinking strong tea may cause some individuals to experience arrhythmias, increased heart rate, and sometimes disturb sleep, further aggravating these cardiac symptoms.