Twisted blue tea can drop three highs, and it is good to send it to the elderly, but it depends on the physique of the elderly.

1, people with bad stomach can't drink it.

2. People with cold constitution should not drink it.

3, infants, pregnant women can not drink.

4. People who feel uncomfortable should not drink it (discomfort: dizziness, abdominal distension and diarrhea, loose bowels, nausea and vomiting, etc.).