Group 1 - The article discusses the application of psychological principles in child education, emphasizing that there are systematic methods to educate children effectively [1] - It highlights the "forbidden fruit effect," where children are more curious about things that are prohibited, suggesting that this can be used positively in parenting [2][4] - An experiment illustrates that telling children not to touch something can increase their curiosity, leading them to explore more [3] Group 2 - The importance of a sense of security in childhood is emphasized, stating that it significantly impacts a child's happiness and development throughout life [5] - Parents play a crucial role in providing this sense of security, which can influence a child's willingness to face challenges and explore new experiences [6] - The article notes that children's expressions of affection, such as seeking closeness to parents, are often rooted in their need for security [7] Group 3 - Sleep is identified as a critical factor in a child's development, with adequate sleep being essential for physical growth and cognitive development [8] - The article warns that parents may inadvertently harm their child's sleep by not addressing underlying fears, such as fear of the dark [9][10] - Recommendations for establishing healthy sleep habits include maintaining a consistent sleep schedule and creating a conducive sleep environment [10] Group 4 - The "overload effect" is introduced, explaining that excessive criticism can lead to increased resistance and negative feelings in children [11][12] - It suggests that parents should avoid repetitive nagging, as it can trigger adverse reactions in children and diminish the effectiveness of their guidance [12]