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Concept of Health and Disease
Prepared and Presented By: Ms. Kajal A. Pradhan
B. Pharm. ,M. Pharm. (Pharmaceutics)
Assistant Professor
Smt. R. D. Gardi B. Pharm. College, Nyara, Rajkot
What is Health?
▪ Acc to WHO 1948, Health is a state of complete physical, mental and
social well-being and not merely the absence of disease or infirmity.
▪ A disease is a particular abnormal condition that negatively affects the
structure or function of all or part of an organism, and that is not due to
any immediate external injury.
What is Disease?
2
3
DIMENSION OF HEALTH:
▪ Health is multidimensional.
▪ World Health Organization explained health in three dimensional perspectives:
physical, mental, social and spiritual.
▪ Besides these many more may be cited, e.g. emotional, vocational, political,
philosophical, cultural, socioeconomic, environmental, educational, nutritional,
curative and preventive..
4
5
Physical dimension:
▪ Physical dimension views heath form physiological perspective.
▪ It conceptualizes health that as biologically a state in which each and every
organ even a cell is functioning at their optimum capacity and in perfect
harmony with the rest of body.
▪ Physical health can be assessed at community level by the measurement of
morbidity and mortality rates
6
Mental Dimension:
▪ Ability to think clearly and coherently. This deals with sound socialization in
communities.
▪ Mental health is a state of balance between the individual and the surrounding
world, a state of harmony between oneself and others, coexistence between
the relatives of the self and that of other people and that of the environment.
▪ Mental health is not merely an absence of mental illness but Free from internal
conflicts also Well – adjusted in the external environment, Strong sense of self-
esteem, Knows himself: his mind, problems and goal.
7
Social Dimension:
▪ It refers the ability to make and maintain relationships with other people or
communities.
▪ It states that harmony and integration within and between each individuals and
other members of the society.
▪ Social dimension of health includes the level of social skills one possesses,
social functioning and the ability to see oneself as a member of a larger society.
8
Spiritual Dimension:
▪ Spiritual health is connected with religious beliefs and practices. It also deals
with personal creeds, principles of behaviour and ways of achieving peace of
mind and being at peace with oneself.
▪ It is intangible “something” that transcends physiology and psychology.
▪ It includes integrity, principle and ethics, the purpose of life, commitment to
some higher being, belief in the concepts that are not subject to “state of art”
explanation.
9
So what is Health??
10
CONCEPT OF HEALTH:
▪ Health is evolved over the centuries as a concept from individual concern to
world wide social goal and encompasses the whole quality of life.
▪ Changing concept of health till now are:
1. Biomedical concept
2. Ecological concept
3. Psychosocial concept
4. Holistic concept
11
1. Biomedical Concept:
▪ Traditionally, health has been viewed as an “absence of disease”, and if one
was free from disease, then the person was considered healthy.
▪ This concept has the basis in the “germ theory of disease”.
▪ The medical profession viewed the human body as a machine, disease as a
consequence of the breakdown of the machine and one of the doctor’s task as
repair of the machine.
12
What is “Germ theory of Disease”?
13
The germ theory states that many diseases are caused by the
growth and reproduction of specific microorganisms within a
host body.
Cont....
14
▪ One of the earliest theories of how disease is transmitted is the
miasma theory that was accepted in ancient times in Europe, India
and China.
▪ The miasma theory held that diseases such as cholera, chlamydia and
Black Death were caused by miasma which is a noxious form of bad
air, also known as night air.
15
Louis Pasteur Conducted more formal experiments on the relationship
between germs and disease from 1860-1864.
He discovered the pathology of childbed fever and suggested boric acid
be used to kill microorganisms causing it o demonstrated that
microorganisms do not continue due to spontaneous generation.
He also discovered another disease that affects silkworms and
developed method to screen silkworm eggs that is still used today
2. Ecological concept
▪ Form ecological point of view; health is viewed as a dynamic equilibrium between
human being and environment, and disease a maladjustment of the human organism to
environment.
▪ According to Dubos “Health implies the relative absence of pain and discomfort and a
continuous adaptation and adjustment to the environment to ensure optimal function.”
▪ The ecological concept raises two issues, viz. imperfect man and imperfect
environment.
16
3. Psychosocial concept:
▪ According to psychosocial concept “health is not only biomedical
phenomenon, but is influenced by social, psychological, cultural, economic
and political factors of the people concerned.”
17
4. Holistic concept:
▪ This concept is the synthesis of all the above concepts.
▪ It recognizes the strength of social, economic, political and environmental
influences on health.
▪ It described health as a unified or multidimensional process involving the well-
being of whole person in context of his environment .
18
19
CONCEPT OF DISEASE:
▪ Webster defines disease as “a condition in which body health is impaired, a departure
from a state of health, an alteration of the human body interrupting the performance of
vital functions”.
▪ The oxford English Dictionary defines disease as “ a condition of the body or some
part or organ of the body in which its functions are disturbed or dearranged”.
▪ Ecological point of view disease is defined as “a maladjustment of the human
organism to the environment.”
▪ The simplest definition is that disease is just the opposite of health: i.e. any deviation
from normal functioning or state of complete physical or mental well-being.
20
Distinction between Disease, Illness and Sickness:
▪ The term disease literally means “without ease” (uneasiness), when something is
wrong with bodily function. Disease is a physiological/psychological dysfunction.
▪ Illness refers to the presence of a specific disease, and also to the individual’s
perceptions and behaviour in response to the disease, as well as the impact of that
disease on the psychosocial environment. Illness is a subjective state of the person
who feels aware of not being well.
▪ Sickness refers to a state of social dysfunction. It is a state of social dysfunction i.e. A
role that the individual assumes when ill (sickness role).
21
22

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Concept of health

  • 1. Concept of Health and Disease Prepared and Presented By: Ms. Kajal A. Pradhan B. Pharm. ,M. Pharm. (Pharmaceutics) Assistant Professor Smt. R. D. Gardi B. Pharm. College, Nyara, Rajkot
  • 2. What is Health? ▪ Acc to WHO 1948, Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity. ▪ A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not due to any immediate external injury. What is Disease? 2
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  • 4. DIMENSION OF HEALTH: ▪ Health is multidimensional. ▪ World Health Organization explained health in three dimensional perspectives: physical, mental, social and spiritual. ▪ Besides these many more may be cited, e.g. emotional, vocational, political, philosophical, cultural, socioeconomic, environmental, educational, nutritional, curative and preventive.. 4
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  • 6. Physical dimension: ▪ Physical dimension views heath form physiological perspective. ▪ It conceptualizes health that as biologically a state in which each and every organ even a cell is functioning at their optimum capacity and in perfect harmony with the rest of body. ▪ Physical health can be assessed at community level by the measurement of morbidity and mortality rates 6
  • 7. Mental Dimension: ▪ Ability to think clearly and coherently. This deals with sound socialization in communities. ▪ Mental health is a state of balance between the individual and the surrounding world, a state of harmony between oneself and others, coexistence between the relatives of the self and that of other people and that of the environment. ▪ Mental health is not merely an absence of mental illness but Free from internal conflicts also Well – adjusted in the external environment, Strong sense of self- esteem, Knows himself: his mind, problems and goal. 7
  • 8. Social Dimension: ▪ It refers the ability to make and maintain relationships with other people or communities. ▪ It states that harmony and integration within and between each individuals and other members of the society. ▪ Social dimension of health includes the level of social skills one possesses, social functioning and the ability to see oneself as a member of a larger society. 8
  • 9. Spiritual Dimension: ▪ Spiritual health is connected with religious beliefs and practices. It also deals with personal creeds, principles of behaviour and ways of achieving peace of mind and being at peace with oneself. ▪ It is intangible “something” that transcends physiology and psychology. ▪ It includes integrity, principle and ethics, the purpose of life, commitment to some higher being, belief in the concepts that are not subject to “state of art” explanation. 9
  • 10. So what is Health?? 10
  • 11. CONCEPT OF HEALTH: ▪ Health is evolved over the centuries as a concept from individual concern to world wide social goal and encompasses the whole quality of life. ▪ Changing concept of health till now are: 1. Biomedical concept 2. Ecological concept 3. Psychosocial concept 4. Holistic concept 11
  • 12. 1. Biomedical Concept: ▪ Traditionally, health has been viewed as an “absence of disease”, and if one was free from disease, then the person was considered healthy. ▪ This concept has the basis in the “germ theory of disease”. ▪ The medical profession viewed the human body as a machine, disease as a consequence of the breakdown of the machine and one of the doctor’s task as repair of the machine. 12
  • 13. What is “Germ theory of Disease”? 13 The germ theory states that many diseases are caused by the growth and reproduction of specific microorganisms within a host body.
  • 14. Cont.... 14 ▪ One of the earliest theories of how disease is transmitted is the miasma theory that was accepted in ancient times in Europe, India and China. ▪ The miasma theory held that diseases such as cholera, chlamydia and Black Death were caused by miasma which is a noxious form of bad air, also known as night air.
  • 15. 15 Louis Pasteur Conducted more formal experiments on the relationship between germs and disease from 1860-1864. He discovered the pathology of childbed fever and suggested boric acid be used to kill microorganisms causing it o demonstrated that microorganisms do not continue due to spontaneous generation. He also discovered another disease that affects silkworms and developed method to screen silkworm eggs that is still used today
  • 16. 2. Ecological concept ▪ Form ecological point of view; health is viewed as a dynamic equilibrium between human being and environment, and disease a maladjustment of the human organism to environment. ▪ According to Dubos “Health implies the relative absence of pain and discomfort and a continuous adaptation and adjustment to the environment to ensure optimal function.” ▪ The ecological concept raises two issues, viz. imperfect man and imperfect environment. 16
  • 17. 3. Psychosocial concept: ▪ According to psychosocial concept “health is not only biomedical phenomenon, but is influenced by social, psychological, cultural, economic and political factors of the people concerned.” 17
  • 18. 4. Holistic concept: ▪ This concept is the synthesis of all the above concepts. ▪ It recognizes the strength of social, economic, political and environmental influences on health. ▪ It described health as a unified or multidimensional process involving the well- being of whole person in context of his environment . 18
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  • 20. CONCEPT OF DISEASE: ▪ Webster defines disease as “a condition in which body health is impaired, a departure from a state of health, an alteration of the human body interrupting the performance of vital functions”. ▪ The oxford English Dictionary defines disease as “ a condition of the body or some part or organ of the body in which its functions are disturbed or dearranged”. ▪ Ecological point of view disease is defined as “a maladjustment of the human organism to the environment.” ▪ The simplest definition is that disease is just the opposite of health: i.e. any deviation from normal functioning or state of complete physical or mental well-being. 20
  • 21. Distinction between Disease, Illness and Sickness: ▪ The term disease literally means “without ease” (uneasiness), when something is wrong with bodily function. Disease is a physiological/psychological dysfunction. ▪ Illness refers to the presence of a specific disease, and also to the individual’s perceptions and behaviour in response to the disease, as well as the impact of that disease on the psychosocial environment. Illness is a subjective state of the person who feels aware of not being well. ▪ Sickness refers to a state of social dysfunction. It is a state of social dysfunction i.e. A role that the individual assumes when ill (sickness role). 21
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