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Class 7
Chapter 6 Class 7 - Adolescence: A Stage of Growth and Change (Curiosi

2.4 Increased Activity of Sweat and Sebaceous Glands

Last updated at April 26, 2026 by

What is Increased Gland Activity?

It is the enhanced functioning of sweat glands and oil glands .

Key Facts and Examples
  • Sweat glands become more active during puberty.
IMG006

Scene — 2.4 Increased Activity of Sweat and
Sebaceous Glands

Example: Adolescents perspire more during physical activities
  • Sebaceous glands produce more oil in skin.
IMG012

A teenage student wipes sweat from his forehead
after sports, showing increased activity of sweat
glands during adolescence.

Example: Teenagers notice oily skin on face
  • Increased oil production may cause pimples and acne .
Example: Some adolescents develop facial acne
  • Regular washing with soap prevents pimples and acne .
Example: Daily face washing keeps skin clean
Gland Activity Changes Hormones increase Puberty hormones rise Glands activate Sweat and oil glands More secretions Increased oil and sweat Need for better hygiene!
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