Health preservation refers to a medical activity that supports life, strengthens physique and prevents diseases through various methods, so as to achieve longevity. The so-called maintenance means maintenance, recuperation and nourishing; The so-called life is life, survival and growth; Generally speaking, keeping in good health means maintaining life. Halbert Dunn, an American doctor, proposed to combine health with fashion. Dr. Halbert Dunn believes that the satisfaction of self-sufficiency is a higher realm of health preservation. Healthy real estate refers to a complex of entertainment, leisure and vacation driven by health-driven products.