CAMBRIDGE NATIONALS
OCR Cambridge National in
Science
(Level 1/2)
R071: How scientific ideas
have an impact on our lives
Module 2: Keeping Healthy
Perhaps the most important thing
for an individual is their health.
.
Just over a quarter of adults were
classified as obese in 2010.
Around three in ten boys
and girls were classed
as either overweight But
or with all the energy
saving devices that are
obese.
available to use, this is
slowly producing an
Obesity can lead to serious chronicunhealthy nation.
diseases and to premature death.
.
Human health is affected by a range of factors:
Health can be affected by
inherited conditions, as well as
disease and even how
diet
Certain medical
disease is treated.
treatments
can also
noise
exercise
have risks.
drug use
smoking
agrochemicals
pollution
So if we are to change the nation from an unhealthy
one to a healthy one we must understand how
human health can be improved.
Medical treatments have many benefits, but there can be
risks as well, eg
.
Drugs can have side
effects.
Surgery will have
associated risks.
But Even
if we can
understand
x-rays
used in the
risks
and the benefits
we can
diagnosing
illness and
build
ourhave
confidence
in new
injuries
some risks.
medical treatments.
If we live in a healthy environment then
we are more likely to be healthy
ourselves.
But in our drive for more and more
energy are we affecting the
environment we live in?
So we need to measure the environmental
effects of human activity and check what
we are doing to our ecosystems.
What will you learn?
After completing this unit you will:
.
Understand how
human health can be
improved
Understand the risks
and benefits of medical
treatments
Be able to measure
the environmental
effects of human
activity
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this OCR resource
.
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