In real life, many parents worry about their children’s height. In addition to genetics and nutrition, exercise, sleep and even psychological factors can also affect height, among which the short stature caused by psychological factors is called “psychological dwarfism”. Psychological dwarfism” refers to children’s short stature due to lack of parental care or mental depression, resulting in stunted growth and development. It is no wonder that some scholars refer to love as a first-class “height enhancer”. Dr. Huo Fang, a famous American psychiatrist, pointed out that children who live in a family environment where they are mentally depressed, uncared for, or often beaten and scolded, and discriminated against, will have hormone secretion disorders in their bodies, causing growth disorders and short stature. Statistics show that the average height of orphans who lost both parents in Germany, Spain, Korea and Vietnam in World War II was several centimeters shorter than children of the same age. So, what kind of magic does love have that enables the human body to grow taller? Those children who can fully enjoy the warmth of their families and the love of their parents have guaranteed nutrition and timely and effective treatment for physical diseases. More importantly, they do not have a shadow psychological state that affects normal eating, digestion and sleep, and therefore, the secretion of growth hormone is more vigorous. As we know, human growth hormone is synthesized and secreted by the glandular cells of the anterior pituitary gland, which plays a key role in regulating growth and development, especially the growth of height. In children who lack family care, the hypothalamus secretes less growth hormone releasing hormone, which is used to regulate the synthesis and secretion of growth hormone by the anterior pituitary gland, and its deficiency will undoubtedly affect the growth and development of children. Moreover, most children from problematic families have sleep disorders, such as difficulty in falling asleep and frequent nightmares. After entering slow wave sleep, growth hormone secretion increases significantly and reaches a peak in blood around 60 minutes, and then decreases after switching to anomalous sleep. In addition, children who lack care tend to have fewer interactions due to psychological suppression and unsound character, and exercise is also obviously insufficient, and puberty development comes later. Due to the lack of proper exercise stimulation and the role of sex hormones in regulating growth hormone secretion, these children are not only stunted, but also have difficulty growing taller. Scientists also found some special cases, that is, some children originally lived in a lack of loving environment, height is significantly lower than the same age children of the same sex, but when their family environment has changed, can be warmed by the family again, their height can be normal again. Therefore, parental care is very important in terms of both the physical and psychological health of children. For those children who do not enjoy the love of both parents, teachers, caregivers and even the whole society have the responsibility to care for and look after them in order to promote their healthy growth.