Almost everyone knows that Li Yuanba was the greatest hero of the late Sui Dynasty, but few know that Zhang Yizhen was the greatest physician. Zhang Yizhen died a tragic death. Despite his superb martial arts skills, he was poisoned by Emperor Yang of Sui and then killed by a thousand imperial guards. The reason? He had saved the life of the Emperor's wife during childbirth, without asking for any reward. He felt wronged, having saved a mother and child, only to meet such an end. It was a great injustice. Later scientific research proved that resentment can have energy...