Childhood spans from 0 to 16 years old and is divided into four stages: infancy, early childhood, preschool, and school age, which is the fastest growing period of the human body and a critical period for everyone’s physical and mental development. In infancy, three rolls, six sits, seven or eight crawls, is the path to the formation of the normal physiological curvature of the spine, but also to promote the eyes, ears, nose, tongue, touch and other important means of perception. This stage is mainly devoted to the mother’s nursing, with concerns about nutrition, safety, and characterized by excessive attention. Due to lack of experience, the most common phenomena are overprotection such as holding too much and holding too early, roll-over deficiency, crawl deficiency, walking too early, and other enabling interventions, which violate the law of head and tail development, weaken the musculoskeletal development of the neck, collar and chest and back, and affect the head, neck, chest and back support ability and heart and lung function. The absence of colors, sounds, and hunger weakens sensory stimulation, and the lack of expression of will affects emotional communication skills, etc. The main evidence is the decrease in “crying. If this stage interferes with the normal physical and mental development of infancy and early childhood, the negative consequences may affect the child for the rest of his or her life! The external manifestation of various body functions, such as rolling, sitting, crawling, squatting, standing, walking, running, jumping, holding, holding, grasping, holding, pinching, throwing, patting, etc., during early childhood further strengthens the functional state of the cervical and lumbar spine curvatures, and perfects the unity of perceptual and motor abilities, i.e., the expression of will. This stage is still a family nurturing period, in addition to the mother, there will be a full-time nurse or relatives to help, the concern is still nutrition, safety, characterized by the child has the ability to express the will verbally, but inaccurate, most of the will is not correct, but inappropriate will is still excessive attention by the parent, and even excessive implementation. The most common expressions are “I want to eat,” “I want to take,” “I don’t,” and “crying” if they cannot get what they want. If they are not properly guided and educated, they will develop physical and mental dysfunction such as partial eating, late sleeping, radical expression of will, and instantaneous changes in “crying” and “laughing”. This will have a negative impact on the child’s physical and mental growth in the future.