There is an important educational principle that we can consider a golden rule: a child is a developing being, growing every day, growing in their body, thinking, energies, perceptions, and everything else. This developing child changes from moment to moment, from day to day. At the same time, with this constant change and steady growth, they need to be in a state of adaptation, discipline, and peace with the environment and society around them. In recent years, useful information has accumulated about the best ways to achieve a child's mental health and treat their psychological disorders. This book attempts to clarify the scientific concept of child mental health and the illnesses they face, which are often the result of poor parenting and the environment surrounding the child in the early stages of their life.