After taking his pulse, An Yinan looked at the old man and said, "Outsiders don't need to worry."

"You are too worried and have a strong heart. Old man, the only medicine for heart disease is the medicine of the heart."

An Yinan wrote a recipe and gave it to the young man.

There are dedicated people responsible for the old man's food, clothing, housing and transportation. All she needs to do is write down the recipe.

"Follow the prescription and boil three ...