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Life orientation

Grade 8

Social development and career orientation

Module 27

The causes of particular diseases in terms of

Environmental factors

Activity 7:

To discuss the causes of particular kinds of diseases in terms of environmental factors,

As well as steps that are taken and could still be taken with regard to these diseases

[lo 1.1, 1.2,1.4]

The following messages have been taken from the Internet:

Stop inhaling tar; start breathing air!

Be tough; turn your back on smoking!

Smoking affects the health of children.

We have a right to clean water,

Because polluted, toxic water

Endangers

Health -

My own, and the health the family and of future generations

And of this planet.

We all have a responsibility -

Individual, state,

Business and industry,

to keep our water free from toxic substances

and to protect

our drinking water,

fish and beaches

  • Sum up the above messages as one message in a single sentence. Your message should make use of the following words: right, responsibility, health, environment.
  • Ask your educator to allow an opportunity for all the messages to be presented to the class. Then organise a class effort to formulate a message that can be spread through the school, as well as through the community. Bear in mind that the shorter the message, the more power it will have.
  • What is the message presented by the class?

Three feared diseases: HIV/AIDS, Tuberculosis and Malaria

There are several diseases that are feared by people. One such disease is cancer. But there is a specific reason for specifying AIDS, tuberculosis and malaria as feared diseases in this section: they affect vast areas of our country and a large portion of our population. Such diseases are known as pandemics.

1. HIV/AIDS

  • What do HIV and AIDS stand for?

HIV stands for Human Immunodeficiency Virus

AIDS stands for Acquired Immune Deficiency Syndrome

  • What are HIV and AIDS?

They are caused by a virus that is transmitted through bodily fluids such as blood, male semen, female vaginal fluid and breast milk.

The virus is transported along the bloodstream and infiltrates the cells of the body, where it multiplies and infects other cells.

An infected cell is not able to offer resistance to other infections and diseases.

AIDS is the condition that arises when the body becomes infected with various diseases and is unable to offer any resistance to the infection.

  • How is it possible to avoid HIV infection?

By means of

a healthy lifestyle, and

prevention of mother-to-child transfer of the HI virus.

  • Is it possible to help people who have AIDS?

People firstly have to be willing to be tested. This can be done by private doctors, and at clinics, hospitals and laboratories.

Such testing must be accompanied by effective consultation. This kind of service is available right across South Africa.

People who have AIDS are able to lead productive lives by following a healthy diet containing plenty of proteins and energy (kilojoules). They must control their stress levels, drink clean water, keep their hands clean and receive treatment for illnesses that they might pick up. They should avoid cats, as these animals carry germs.

Questions & Answers

how can chip be made from sand
Eke Reply
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Life orientation grade 8. OpenStax CNX. Sep 12, 2009 Download for free at http://cnx.org/content/col11048/1.1
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