What happens during adolescence?
Adolescence begins with puberty, a stage of major changes in both the body and the mind.

When does puberty start?
👧 Girls: between 8 and 14 years old.
👦 Boys: between 9 and 15 years old.
What changes during this stage?
Puberty involves not only physical changes but also:
🧠 Psychological changes (emotions and behavior).
🤝 Social and relational changes (how people interact with others).
🧍♂️ Physical changes (transformations in the body).
The role of hormones:
During this stage, hormones become active. They act as the body’s “chemical messengers”:
👦 Testosterone (in boys).
👧 Estrogen and progesterone (in girls).
In childhood, these hormones are mostly inactive, but during puberty they become highly active.
What do hormones do?
They are responsible for:
activating secondary sexual characteristics.
shaping adult physical traits.
causing changes in body appearance and structure.
Acne during adolescence:
During adolescence, it is common to develop:
Acne (skin pimples).
This happens because:
there is an increase in sebum (skin oil) production.
sebaceous glands become more active.
pores can become blocked and inflamed.
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