its for class 9th science !!

2.  Disease= Dis Ease=Disturbed Ease and there is a specific cause for this discomfort.
 Disease is any harmful change that interferes with the normal appearance, structure, or
function of
 the body or any of its parts.
 Conditions essential for being free of a disease
 •There should be no discomfort to the individual.
 •There should be no specific and particular cause for a discomfort
 Difference between being „healthy‟ and „disease free‟
 •It is possible to be in poor health without actually suffering from a disease
•When we think about health, we think about societies and communities
•When we think about disease, we think about individual sufferers
 To identify a disease, we look for signs and symptoms.
 Symptoms are
 •Unfavorable change in the functioning or appearance of one or more systems of the body.
•Signs – things we feel as being “wrong”.
•Symptoms give an indication of the disease.
 Example: Headache, cough, fever, loose motions, pus in the wound etc are symptoms
 Laboratory tests are done to confirm the presence and type of disease

3.  Anything that prevents proper functioning of cells and tissues will lead to a
lack of proper activity of the body. When a person experiences such a
condition, he is said to be 'ill' or 'in poor health'.
What is health?
• A state of 'being well'
• A state of being well enough to function well physically, mentally and
socially.
Which are the factors important for staying in good health?
• Physical Environment
• Social Environment
• Cleanliness (Personal Hygiene and Public Cleanliness)
• Good Food
• Good economic conditions
• Social Equality and harmony (an example of how community issues effect
individual health)
• To have the opportunity to realise the unique potential in all of us
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4.  1. Nutritional Deficiencies:
 Nutritional deficiencies can be caused by
poor diet, stress, an underlying disease
process that causes poor assimilation,
utilization, or an increased need for
adequate nutrition, or by other causes.

5.  2. Toxic Conditions:
 Toxins can get into your body from a
chronically poor diet, poor air quality, a
“sick building”, contaminated food and
water, vaccinations, occupational hazards,
amalgam fillings, household chemicals,
beauty products, infections, and others
sources.

6.  3. Stress:
 Stress is a subjective measure of the amount
of emotional and physical burden placed on a
body/mind. It can be caused by lifestyle,
emotional burdens, outlook on life, infections,
excessive activity, inadequate activity,
allergies, and other sources. Nutritional
deficiencies and toxic burdens can also rightly
be called stressors.
 Some integrative physicians stop here and list
the above as the 3 main causes of illness.
Some often add two more categories.

7.  4. Infections
 Symptoms of infection can be obvious (like an
acute fever) or they can be completely unobvious.
There are dozens of common organisms that can
cause “stealth” infections that cause no obvious
illness. In course of time these infections can
slowly become debilitating. Common pathogenic
organisms that can cause stealth infection include
Candida, Lyme disease, babesia, bartonella,
mycoplasma, herpes viruses, Epstein-Barr virus,
XMRV, and many others. Many practitioners
contest that such infections are of epidemic
proportions.

8.  5. Allergies
 Allergies do not have to make you break out in
hives or cause anaphylactic shock. Low grade
allergies (which can be called “sensitivities”) cause
many chronic problems. Most people are sensitive
in some degree of another to foods they eat.
People can also be sensitive to chemicals or other
environmental factors. Though sensitivities can
cause debilitating illness, the symptoms are
typically mild to moderate. Avoiding sensitivities, as
well as desensitizing the body, are both
approaches taken to correct such a situation.

9.  Difference between being 'healthy' and 'disease free'
• It is possible to be in poor health without actually suffering from a disease
• When we think about health, we think about societies and communities
• When we think about disease, we think about individual sufferers
To identify a disease, we look for signs and symptoms.
Symptoms are
• Unfavorable change in the functioning or appearance of one or more
systems of the body.
• Signs - things we feel as being "wrong".
• Symptoms give an indication of the disease.
Example: Headache, cough, fever, loose motions, pus in the wound etc are
symptoms
Laboratory tests are done to confirm the presence and type of disease.
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10.  An Acute disease does not cause major effects on
general health
A Chronic disease will cause major effects on general
health(Loss of weight, feeling tired all the time, being
short of breath)
An acute disease may affect a person for a few days or
weeks
A chronic disease may affect a person for years
An acute disease will not cause drastic long term
affects on the health of a person.
A Chronic disease will cause drastic long term affects
on the health of a person.
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