本书针对睡眠、饮食、运动、情志、脏腑五个方面，按照春季养生、夏季养长、秋季养收、冬季养藏的原则，分别提出了四季养生方案。( This book puts forward plans for health preservation in four seasons in sleep, diet, exercise, emotions and internal organs according to the principle of growth in spring, vigorousness in summer, reserve in autumn and preservation in winter. )