Pubertal and intellectual evolutions

In girls: breast development, reproductive tract. Weight gain. Menarche. In 1940, the first rules in Europe came to 17 years. Currently, the average age is around 12 years and 6 months, because living conditions are more comfortable and assertive adolescents earlier.

In boys: wet dreams first, voice change, hair, bone growth and stature.

For both: re-shaping the body image, continuously (access to the file "body schema"). Fixation on physical appearance outside: very narcissistic era. Different tendencies to excess. Very little hygiene. Instability.

During the early years, the thought of the little child was magical (access to the file "childhood"). A latent period he acquired a concrete logic (access to the file "window period"). To 12 years, the teenager will be able to reason deductively, making assumptions and meets in the abstract. It is now possible thanks to the birth of formal thought, or "hypotético-deductive". Having acquired the formal thought, he will use to excess. He did not need the experience. This is when we change the world, very creative but without support in reality. He acquired the adult intellect.