Health preservation refers to a medical activity that supports life, strengthens physique and prevents diseases through various methods, so as to achieve longevity. Traditional Chinese medicine pays attention to integrity and systematicness, aiming at preventing and treating diseases before they happen. The famous representative work of TCM theory is Huangdi Neijing.
Health preservation means "prevention before illness", which can be achieved through various methods, such as nourishing the mind, adjusting diet, exercising, being cautious about sexual intercourse, and adapting to cold and temperature. It is a comprehensive activity to strengthen the body and prolong life.