- Three types of physical environment:
unaltered environment:-
the natural environment (i.e. radon-naturally occurring
breakdown product of uranium which increase risk of lung cancer;
sunlight exposure increases chances of skin cancer like
melanoma)
altered environment:-
impact of chemicals, radiation, and biological products that
humans introduce into the environment (i.e. pesticides, benzene,
chlorofluorocarbons, elements mined from earth like mercury and
lead, radiation from nuclear energy and medical wastes)
built environment:-
physical environment constructed by human beings (i.e. the way
we build and heat our buildings and cook food, way we travel)
- Goal of environmental health:-
To Promote healthier environments to improve health.
More than 12 million people around the world die every year because
they live or work in unhealthy environments. Healthy People 2030
focuses on reducing people's exposure to harmful pollutants in air,
water, soil, food, and materials in homes and
workplaces.
- Love Canal:- Love Canal is a neighborhood in Niagara
Falls named after a large ditch. Love Canal Homeowners Association
(LCHA) was established to give the community a voice in the
decisions made during the Love Canal environmental crisis. LCHA
membership consisted of approximately 500 families living within a
10-block area surrounding the Love Canal landfill. Within a week of
the health order, the residents held a public meeting, elected
officers and set goals for the newly formed organization.
- Silent spring:- Silent Spring is an environmental science book
by Rachel Carson.The book was published on September 27, 1962,
explaining the adverse environmental effects caused by the
indiscriminate use of pesticides.
- Ecological risk assessment:-Ecological Risk
Assessments are performed to evaluate the likelihood of
adverse ecological effects occurring as a result of exposure to
physical or chemical stressors. These stressors are defined as any
biological, physical, or chemical factor that causes adverse
responses in the environment.
- The FDA regulates a wide range of products, including foods
(except for aspects of some meat, poultry and egg products, which
are regulated by the U.S. Department of Agriculture); human and
veterinary drugs; vaccines and other biological products; medical
devices intended for human use; radiation-emitting electronics
etc.
- In the United States, dietary supplements are regulated under
the Dietary Supplements Health Education Act of 1994 (DSHEA) as a
subset of foods and limited to those taken orally. This approach is
primarily post-market in nature. However, it does contain
pre-market elements.
FDA regulates both finished dietary supplement products and
dietary ingredients. FDA regulates dietary supplements under a
different set of regulations than those covering "conventional"
foods and drug products.
- Food and drug administration’s control over drug
prices:-However, the FDA has no legal authority to investigate or
control the prices set by manufacturers, distributors and
retailers. A number of factors can impact drug pricing, such as the
costs of research and development and the amount of competition in
the marketplace.
- Off-label prescribing :- Off-label prescribing is when a
physician gives you a drug that the U.S. Food and Drug
Administration (FDA) has approved to treat a condition different
than your condition. This practice is legal and common. In fact,
one in five pres'criptions written today are for
off-label use.
- Interstate Commerce Clause and public health:-Even when
Congress has not actively employed its commerce power, state and
local public health efforts may be affected by a legal doctrine
called the “dormant Commerce Clause.” Not only does the Commerce
Clause empower Congress to act, but it can also bar state and local
actions that could interfere with interstates.
The provision of the U.S. Constitution that gives Congress
exclusive power over trade activities among the states and with
foreign countries and Indian tribes. An Interstate commerce, or
commerce among the several states, is the free exchange of
commodities between citizens of different states across state
lines.
- No Duty Principle:-The so-called "no duty" rule under the
common legal system may make physicians immune from civil liability
for their refusal to treat unless a physician-patient contractual
relationship exists.
- Nuremburg Code:-The Nuremberg Code aimed to protect human
subjects from enduring the kind of cruelty and exploitation the
prisoners endured at concentration camps. The 10 elements of the
code are: Voluntary consent is essential. The results of any
experiment must be for the greater good of society.
- Tuskegee study:-It was called the “Tuskegee Study of Untreated
Syphilis in the Negro Male.”The study initially involved 600 black
men – 399 with syphilis, 201 who did not have the disease. The
study was conducted without the benefit of patients’ informed
consent. Researchers told the men they were being treated for “bad
blood,” a local term used to describe several ailments, including
syphilis, anemia, and fatigue. In truth, they did not receive the
proper treatment needed to cure their illness.
- Belmont Report:-The Belmont Report was written by the National
Commission for the Protection of Human Subjects of Biomedical and
Behavioral Research.
- Systems thinking and reductionist thinking:-Parts are related
through a simple cause effect relationship,In contrast to the
reductionist approach, systems thinking is a holistic perspective
claiming that the whole is not the sum of its parts but rather is a
product of the parts interactions.
- Systems analysis and systems diagrams:-Systems Analysis is a
broad term for describing methodologies for developing high quality
Information system which combines Information Technology, people
and Data to support business requirement; And a system diagram in
software engineering and systems engineering is a diagram that
defines the boundary between the system, or part of a system.
- One Health :-One Health issues include zoonotic diseases,
antimicrobial resistance, food safety and food security,
vector-borne diseases, environmental contamination, and other
health threats shared by people, animals, and the environment.
- Climate change implications:-Increased heat, drought and insect
outbreaks, all linked to climate change, have increased wildfires.
Declining water supplies, reduced agricultural yields, health
impacts in cities due to heat, and flooding and erosion in coastal
areas are additional concerns.
- How a bill becomes a law:-A Bill is the draft of a legislative
proposal which has to pass through various stages before it becomes
an Act of Parliament. The legislative process starts with the
introduction of a Bill in either House of Parliament-Lok Sabha or
Rajya Sabha. A Bill can be introduced either by a Minister or by a
Private Member.
- Federalism:-Federalism is a mixed or compound mode of
government that combines a general government with regional
governments (provincial, state,territorial or other sub-unit
governments) in a single political system.
- Affordable Care Act features:-1.Providing Access to Insurance
for Uninsured Americans with Pre-Existing Conditions.
2.Extending Coverage for Young Adults.
3.Expanding Coverage for Early Retirees.
4.Rebuilding the Primary Care Workforce.
5.Holding Insurance Companies Accountable for Unreasonable Rate
Hikes.