Page 66 - Biology_Form_3

Biology for Secondary Schools

(f) Motivational and situational Alcohol, found in beverages and liquors, is
reasons: Many youth use substances a depressant, although a small amount has
to relieve stress, satisfy curiosity, or a stimulant effect. Relatively large amounts
enhance performance and alertness distort vision and interfere with hearing. Also,
which increases the risk of drug abuse. alcohol interferes with the transmission of
FOR ONLINE READING ONLY
nerve impulses. Heavy drinking can cause

Effects of drug abuse cancer of the liver and stomach.
Task 2.17 Other effects of drug abuse are not health

Search from the library and internet related and they include loss of employment,
sources for animations about documentary break up of relationship, homelessness, and
videos on effects of drugs and drug abuse. risky sexual behaviour.
Watch the videos and write short notes
about the information learned. Preventive and control measures against
drug abuse
Although different drugs have different Many youth are the victims of drug abuse,
effects in the body, generally the common therefore, measures should be taken to
effects include damaged immune system prevent them from drug abuse. Prevention
and therefore susceptibility to infections, programmes have a clear aim to stop the use
heart attacks, collapsed veins, liver failure, of illegal drugs and excessive use of legal
abdominal pains, seizures and stroke. drugs by providing reliable information and
Excessive drug abuse leads to an addiction teaching young people to be responsible
disorder. This is a chronic brain disorder for their actions. Some social aspects for
which leads to an inability to control the prevention of drug abuse include:
use of drug. (a) Familial Factors: Strengthening
family support through parenting
Tobacco smoking is linked with cancer of programs, improved communication,
the lungs, mouth, throat and larynx. It is and supervision can reduce risks.
also linked with thinning and weakening of Counselling for families facing
lung tissues, blockage of arteries in the heart trauma or instability helps create a
and chronic bronchitis. Smoking appears to stable environment that discourages
delay the healing of stomach ulcers, reduces substance abuse.
the sense of smell and taste, and slows
down reflexes. (b) Social and Peer Influences: Teaching
youth to resist peer pressure and
Women who smoke during pregnancy have a correcting false beliefs about drug
higher chance of having low birth weighted use can prevent substance abuse.
babies than non-smokers. Moreover, babies Promoting positive peer groups and
born to women who smoke may be stillborn peer-led activities including sports
or die shortly after birth. provides healthy social alternatives

59 Student’s Book - Form Three

23/10/2025 11:52:40
BIOLOGY FORM 3 FINAL EDITED 16.09.2025.indd 59
BIOLOGY FORM 3 FINAL EDITED 16.09.2025.indd 59 KAMISHNA 23/10/2025 11:52:40 KAMISHNA