健康养生: 保持良好心态, 多吃蔬菜水果, 适当运动体育锻炼,休息好,..... 1. From "80%的时间都熬夜写论文", I guess he didn't do much 运动体育锻炼 2. From "他自己也担心的不得了,为这他已经哭了好几回了", I guess he didn't 保持良好心态