Meridian is the passage of qi and blood in human body, which must be kept unobstructed and there are many diseases. In order to keep the meridians unobstructed, many health preserving methods have been created and accumulated since ancient times, such as eating spicy food and medicine to help the meridians unobstructed. Four-hour daily life meridian health, according to the seasonal climate change, appropriate increase or decrease clothing, adjust sleep and get up time, in order to maintain the normal operation of meridian qi and blood. Guide the health of the meridians, and maintain or strengthen the blood circulation of the meridians by practicing certain health preservation techniques, such as Baduanjin, Wuqinxi, Taiji, Yijinjing, etc.