2. Patients with heart disease: Caffeine and theophylline in Jinlian tea will increase heart rate and blood pressure, which may increase the heart burden of people who already have heart problems.
3. Hypertensive patients: Jinlian tea will lead to an increase in blood pressure, and for people who already have hypertension, it may aggravate the symptoms.
4. Patients with dyspepsia or gastric ulcer: Jinlian scented tea contains tannic acid. Excessive drinking will increase gastric acid secretion, which is not good for patients with dyspepsia or gastric ulcer.
5. Drinking late at night: Jinlian scented tea contains caffeine, which will affect the quality of sleep at night.