Introduction to Health Flashcards
What is Disease Prevention and what is its goal?
” preventive medicine”
Emphasizes the identification and management of early indicators of risk
Goal- prevent illness, delay onset, lessen the severity
What are the 3 levels that disease prevention is divided into?
Primary, Secondary and Tertiary (bottom)
What is Primary Prevention?
Actions/behaviours designed to prevent health problems from arising - target the whole population
E.g. immunization, safe sex, healthy eating
Prevention of disease before it develops. correlates with the Reduction of risk factors
What is Secondary Prevention?
Early recognition and intervention to eliminate or reduce symptoms before a more serious illness develops - targets “at-risk individuals”
E.g. diet intervention for increased blood sugar, smoking cessation
Early detection and intervention correlate with the screening
What is Tertiary Prevention?
Treatment or rehabilitation efforts aimed at limiting the effects of disease - targets patients
Prevent further development, progression, and complications
E.g. chemotherapy, bypass surgery
Treatment of established disease correlates with the Prevent deterioration
What is Health Inequality?
Race/ethnicity: higher risk of illness and adverse outcomes
Gender: differences in disease risk, variation in symptoms
Socioeconomic Status (SES)
Disability: physical and mental health
Access to healthcare, resources
Sexual orientation
The spectrum of Inequality?
gender, geography, sexuality, socio-economic group ,disability, age, ethnicity
What does choosing health behaviours equal?
Immediate benefits
Improved ability to meet developmental tasks
Long-term rewards
Examples of Healthy choices?
Adequate sleep
Healthy eating, regular physical activity
Healthy body weight
No smoking
Limiting alcohol intake
Safe sex
Maintain oral hygiene
Wear your seatbelt
Monitor your health: self-exams, medical checks
What are some Health Promotion Strategies?
Educational supports: promote learning (knowledge is not enough)
Organizational supports: programs/services to encourage participation
Environmental supports: rules, policies governing behaviours, supporting behaviour change
Financial supports: financial incentives motivate healthy choices
How do we stop the spread of COVID-19
Public Health:
Vaccination (doesn’t cure, lessen effect) - prevent disease before it develops
Personal health behaviours (washing hands)
Public spaces
Workplaces, schools, stores, restaurants, etc.
· testing, isolation and contact tracing - early detection and intervention
Medical Intervention:
· Therapeutics, hospitalization, breathing support - treatment if established disease
What are the benefits of Optimal Health?
Individual level:
- Improved life expectancy, and quality of life (QOL)
- Improved physiological function, energy
E.g. stronger immune system, improved cardiovascular endurance
- Improved physical appearance
- Improved self-esteem, positive outlook
- Enhanced relationships
- Improved ability to manage stress
- Improved capacity to cope with life’s challenges
Global level: personal health choices contribute to global health or the global burden of disease
- Decrease direct medical care costs
- Decreased indirect costs, associated with poor health
□ Lost productivity, absenteeism, disability
- Which agency came up with the landmark of health in 1947?
World health organization
- In the early 1900s, the leading causes of death were:
Infectious diseases
What is health promotion
process of enabling people to increase control over and to improve their health” (WHO, 2013)
Policies and programs that promote behaviours known to support good health * creating optimal conditions
Efforts beyond a focus on individual behaviour
□ Wide range of social and environmental interventions
Goal: empower individuals and communities to achieve the highest possible levels of well-being
What is the Social-Ecological Model of Health Promotion?
Bottom to top:
Individual - attitudes, beliefs, knowledge and skills
Interpersonal - family, friends, social groups
Institutional - work, school, organizations
Community - relationships between neighbourhoods, towns, cities
Public Policy - national, provincial, and local laws and regulations
What are some Action areas to achieve health:
Public policy, supportive environments, personal skills
Strategies:
Advocate (individual and social action to get political will), mediate( between multiple state holders), enable (partnership)
What is Health?
Can be seen as a capacity of resource for a vital and meaningful life rather than a state
“To realize aspiration, to satisfy needs, and to change or cope with the environment… a resource for everyday life” (Ottawa Charter, 1986)
the dynamic, every-changing processes trying to achieve individual potential in the physical, social, mental, occupational, emotional, environmental, and spiritual dimensions
What is one of the ways we go about defining health?
impact ex. Trauma vs Camesha
Wellness?
achieving one’s potential in each of the health components
Health and Wellness Continuum?
Left to right:
Irreversible disability and/or death
Chronic Illness
Signs of illness
Neutral Point
Signs of health/wellness
Improved Health/wellness
Optimal wellness/ well-being
What are the 7 dimensions of Health?
Physical
Social
Intellectual
Emotional
Occupational
Environmental
Spirtual
Physical Health?
body size, shape, functioning, susceptibility to disease, ability to perform ADL (activities of daily living/day-to-day activities)
Social Health?
Capacity for satisfying relationships, successful interactions, and communication.
Intellecutual Health?
ability to learn from mistakes and successes, ability to thinking clearly reason, objectively and make responsible decisions
Emotional Health?
self-efficacy, closely related to self-esteem, mental health, ability to express emotions effectively and appropriately, self-esteem, and trust.
Occupational Health?
satisfactions from career, career development, and work/life balance.
Environmental Health?
should also include personal environment + external environment ex. organized desks space, and people you surround yourself with, appreciation of one’s external environment, and concern for preserving protecting and improving.
Spiritual Health?
having a sense of meaning and purpose in one’s life, strength and hope.
What is life expectancy?
The number of years a person can be expected to live based on the year of birth
→ varies slightly with each successive cohort
varies as a function of gender, place of residence
Is female or male expectancy always higher and wide?r
female
2021 (without all of the COVID-19 waves)
Females: 84 years
Males: 80 years
Factors decreasing life expectancy (2019-2021)?
- Rising rates of overweight and obesity
Life expectancy for the next generation is lower than parents- Global pandemic
5 months reduced as a result of the first 2 waves of COVID-19
- Global pandemic
Morbidity?
the measure of sickness, co-morbidity is the presence of multiple conditions ex. Having diabetes and cancer, another term for illness and disease
Mortality?
another term for the death rate
How are mortality and morbidity similar?
Both often give rates
- Example: infant mortality
◊ Number of infant deaths (<1 year) per 1000 live births(excluding stillbirths)
Referred to the health care system
Referred to pre/post natal care
States help improve areas of healthcare
◊ 2020- 4.5 deaths/1000 births (Stats Can, 2022)
4.5/1000 X 100 =0.45%
Incidence?
Number of new cases of a specific condition in a specific population within a specific time period
Likelihood of being diagnosed with a specific condition in a specified time
Prevalence
Total numbers of cases of a specific condition existing in a specific population within a specific time period
Incidence rate?
number of newly diagnosed cases in the specific time period, divided by the number of personas in the population
What is the pre-1900 Medical model?
focus on the individual (absence of disease, biological aspect if human physical)
What is the post-1900 Public health model:
focus on the individual’s interaction with the environment- aka “ecological model”
What occurred in 1900?
> 30% of deaths occurred among children <5 years
- Infectious disease - the leading cause of these deaths
- TB, pneumonia, influenza
sanitation, vaccines and antibiotics
- Life expectancy dropped dramatically
- Leading cause of death shifted to chronic diseases
What are the leading causes of death in Canada?
malignant neoplasms
disease of heart
cardiovascular diseases
chronic liver respiratory diseases
accidents
What are Infectious diseases?
Caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi. Can be spread, directly or indirectly, from one person to another
- E.g. Hepatitis, malaria, STIS
A chronic disease that can be infectious
- E.g. HIV, ATOS
What are Non-infectious or Non-communicable diseases?
medical conditions or diseases which cannot be transmitted from person to person
E.g. heart disease, stroke, cancer, chronic respiratory diseases, diabetes, osteoporosis
What are the classifications of disease?
Acute and Chronic
Acute disease?
symptoms appear and change or worsen rapidly as in a heart attack
Chronic disease?
develops and worsens over an extended period of time as in atherosclerosis
Are all chronic diseases non-infectious?
No
What is the human genome project?
international effort to identify and describe all genes in the human genome
- Complement of genetic material contained within chromosomes in cells
Current research:
- Genes associated with aging and disease (e.g. telomere shortening)
- Environmental influences
What is Epigenetics?
field of study - influence of environmental factors on gene expression
Some illnesses are strictly genetic… regardless of environment disease will surface
- E.g. cystic fluorosis, sickle cell anemia
What is Penetrance?
likelihood that disease will occur when a particular genotype is present (NCL, 2020)
- In many cases, genetics predispose people to certain diseases, disorders
- E.g. cancer, depression
Genetic predisposition is influenced by environmental factors e.g. health behaviours
What is the activity of genes influenced by?
epigenetics
- Can down/up-regulate them
Incidence and Prevalence diagram?
incidence - faucet
prevalence - water in bathtub
death (mortality) - leak from bathtub
recovery - heat released from bathtub
What are non-modifiable risk factors?
those that cannot be manipulated or changed
E.g. age, gender, mendicity, genetics
Modifiable risk factors?
those we can do something about
E.g. diet, physical activity smoking, alcohol, body weight
3 major chronic diseases?
► Malignant neoplasm/tumour/cancer
► Cardiovascular disease
► Diseases of the heart and blood vessels
Diabetes (a major cause of morbidity NOT mortality)