Concept of Adolescence

• Hormones are chemicals that play a big role in human growth and how our reproductive system works.
• All living things make new individuals so their species can continue.
• Humans (and many animals) can only reproduce after they “grow up” (become mature).

• Adolescence is the period of rapid development that occurs between childhood and adulthood.
• It is a time for the body and mind to get ready for adulthood.
• The word “adolescence” originates from the Latin word "adolescere," meaning “to grow into maturity.”
• Adolescents are individuals who are no longer children but not yet adults.
• Adolescence is usually from 10 to 19 years of age.
• It often begins around age 12, but the experience is not the same for everyone.
• For most girls, adolescence starts earlier than for boys.

Adolescence is the period between the beginning of sexual maturation and entry into adult life.

According to India’s National Youth Policy (13-19 years), three stages:

Early (10–14 years)

• Many new body changes and fast growth appear.
• Thinking is more about real things and the present moment.
• Kids become curious about their bodies and friends.

Middle (15–17 years)

• Most changes are complete; thinking becomes more abstract.
• Re-think your body image and become romantically attracted to peers.
• Friend groups become more important.

Late (18–19 years)

• Full physical maturity, stable relationships.
• Adult thinking and responsibilities begin.

• Puberty is the time when a child’s body starts to change and they become able to have children — boys start making sperm and girls start releasing eggs.
• Girls usually start puberty around age 12 (first sign: breasts start to grow) and boys around age 13 (first sign: testicles get bigger).
• These changes happen because of special body chemicals called hormones — testosterone in boys and oestrogen in girls — which are controlled by another hormone called FSH from the brain.

Changes in Boys and Girls:

• From ages 10–11, children suddenly start growing faster.
• This growth happens because of increased hormones during this time.

Major changes:

1. Increase in height:

• Bones in arms and legs get longer; weight also increases.
• Girls start growing faster, but both reach their max height by the end of their teenage years.

2. Change in body shape:

• Boys: longer bones, more muscles, broader shoulders, narrower hips.
• Girls: curvier body, broader hips, bigger hip bones.

3. Change in voice:

• Boys: voice box grows (Adam's apple forms); voice becomes deep and rough.
• Girls: voice box is smaller, voice is high-pitched.

4. More sweat/oil:

• Glands in the skin work more, leading to more sweat, oil, and pimples.

• Strong feelings and mood swings are common.
• Teens want to find their own identity and independence.
• Peer groups (friends) become very important: they can be both helpful and risky.
• May experience stress, anxiety, and sometimes risky behaviours.

• Adolescence begins with secondary sexual changes, ends when the body stops growing.
• Not just about the body—also about the mind and social skills.
• It is a bridge between childhood and adulthood, preparing people to be independent and mature.

• Adolescence is the stage between childhood and adulthood (ages 10–19), marked by fast physical and emotional changes.
• It has three stages: Early (10–14), Middle (15–17), and Late (18–19), each with different body and thinking developments.
• Puberty brings sexual and physical changes due to hormones—testosterone in boys and oestrogen in girls.
• Physical changes include growth in height, changes in body shape, changes in voice, and increased sweat/oil production.
• Emotional and social changes include mood swings, seeking independence, peer pressure, and identity formation.