It's good. My grandmother has been drinking it for almost a year, and the effect is still quite obvious. The old man likes smoking. He used to get up and vomit when he slept at night, but now he basically doesn't vomit, and his spirit is much stronger than before. At first, the old man said yes, and it took a long time for the family to see the effect. Song Yifu's talk about keeping healthy is very correct. He advocates health preservation and tells you some common sense of life health preservation, and he only advises you to take medicine when you are sick and need it. Moreover, he has always advocated going to the hospital and receiving formal treatment when he is sick. Many old people are sick and reluctant to spend money. Song Yifu didn't know that a minor illness might become a serious illness until he finished speaking. It is useful to watch more of his lectures.