2. Source: Master Zhuangzi: "I listened to my master and got a good health." Cheng Tang Xuan Yingshu: "I have realized the way of keeping in good health."
3, sentence: the way to keep fit, don't sit for a long time, lie down for a long time and listen; Don't insist on food, get drunk, feel great sorrow and anger, and feel great sorrow and sorrow. This is called neutralization. Those who can neutralize will live a long life.