1. Health care: Lycium barbarum soaked in black tea helps to improve blood circulation, resist oxidation and aging, and is very helpful for health care.

2. Refreshing: Black tea contains caffeine, which can promote the excitement of the nervous system and improve alertness and attention.

3. Lowering blood pressure: The black tea soaked in medlar has the function of lowering blood pressure, which can relieve symptoms such as hypertension.

4. Lose weight: Lycium barbarum soaked in black tea can promote fat decomposition and accelerate metabolism, thus playing a certain role in losing weight.

Taboo:

1. Pregnant women, lactating women, children and the elderly should not drink too much black tea.

2. The caffeine content in black tea is high, so it is not suitable for drinking at night, so as not to affect sleep.

3. Black tea is forbidden in patients with upper gastrointestinal bleeding and ulcer.

People with arteriosclerosis, coronary heart disease and other diseases should drink a small amount.

5. Moderate drinking of tea, excessive drinking can easily lead to tea drunkenness, insomnia, headache and other discomfort.