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Environmental Environmental Drivers Drivers
of of Chronic DiseaseChronic Disease
Based on the report Environmental Threats to
Healthy Aging
by Jill Stein MD, Ted Schettler MD, MPH,
Maria Valenti and Ben Rohrer
20102010
Greater Boston Physicians for Social Responsibility (www.psr.org/Boston)and
The Science and Environmental Health Network (www.sehn.org)
What We Will CoverWhat We Will Cover
Environmental factors are key drivers of many common Environmental factors are key drivers of many common chronic diseaseschronic diseases
Environmental factors alter key biological pathways Environmental factors alter key biological pathways leading to chronic diseaseleading to chronic disease
Important environmental determinants of health include:Important environmental determinants of health include:- Food system/nutrition and dietFood system/nutrition and diet
- Toxic chemicalsToxic chemicals
- Built environment / physical activityBuilt environment / physical activity
- Psychological & socioeconomic stressPsychological & socioeconomic stress
Examples of cross cutting solutions for healthy people & Examples of cross cutting solutions for healthy people & a healthy environmenta healthy environment
Scope & Context of the ProblemScope & Context of the Problem A century of change in natural, built and social A century of change in natural, built and social
environments has causedenvironments has caused major changes in the major changes in the patterns and distribution of diseases.patterns and distribution of diseases.
We are seeing dramatic increases in chronic diseases, We are seeing dramatic increases in chronic diseases, and at younger ages, many of which, such as diabetes, and at younger ages, many of which, such as diabetes, are themselves risk factors for dementiaare themselves risk factors for dementia..
The over- 65 population will nearly double by 2030 to The over- 65 population will nearly double by 2030 to more than 71 million, sharply increasing the number of more than 71 million, sharply increasing the number of people at risk of chronic diseases of aging like people at risk of chronic diseases of aging like Alzheimer’s and Parkinson’s diseases, among others. Alzheimer’s and Parkinson’s diseases, among others.
Environmental factors play a key role in health across Environmental factors play a key role in health across the lifespan. Thus they offer a major prevention the lifespan. Thus they offer a major prevention opportunityopportunity..
The Changing Environment and The Changing Environment and Disease PatternsDisease Patterns
During the past century, human activity has altered During the past century, human activity has altered virtually all aspects of the world’s ecosystems:virtually all aspects of the world’s ecosystems:
– Pervasive spread of synthetic chemicals; air and water pollution. Pervasive spread of synthetic chemicals; air and water pollution. – Industrialized food supply.Industrialized food supply.– Destruction of critical natural habitats, stressing ecosystems.Destruction of critical natural habitats, stressing ecosystems.– Climate change.Climate change.
How we live, eat, work, play and socialize have How we live, eat, work, play and socialize have substantially changed:substantially changed:
– Built environments have increased social Built environments have increased social isolation for many people; reduced isolation for many people; reduced physical activity.physical activity.– Growing income gap increases disease risk. Growing income gap increases disease risk. – Diseases of civilization - obesity, diabetes, Diseases of civilization - obesity, diabetes, cardiovascular disease, hypertension.cardiovascular disease, hypertension.
Environment Drives Chronic DiseaseEnvironment Drives Chronic Disease
Western Disease ClusterWestern Disease Cluster•Diabetes Diabetes •ObesityObesity•Abnormal LipidsAbnormal Lipids•Metabolic SyndromeMetabolic Syndrome•Cardiovascular DiseaseCardiovascular Disease
•Food system/DietFood system/Diet•Fossil FuelsFossil Fuels•Socioeconomic StressSocioeconomic Stress•ChemicalsChemicals•Built Environment/Built Environment/ TransportationTransportation
•InflammationInflammation•Disrupted Insulin Disrupted Insulin SignalingSignaling•Oxidative StressOxidative Stress
Alzheimer’s Alzheimer’s Parkinson’sParkinson’s
Altered PathwaysAltered Pathways
Environmental Environmental FactorsFactors
Chronic Chronic DiseaseDisease
Profound Public Health Impact Profound Public Health Impact Of Environmentally-Driven Western Of Environmentally-Driven Western
Disease ClusterDisease Cluster
Obesity/overweight – 2/3 US adults, prevalence x2 in Obesity/overweight – 2/3 US adults, prevalence x2 in ~25 yrs ~25 yrs http://www.cdc.gov/chronicdisease/resources/publications/AAG/obesity.htmhttp://www.cdc.gov/chronicdisease/resources/publications/AAG/obesity.htm
Pre/Diabetes – 40% US adults, prevalence DM ~x2 Pre/Diabetes – 40% US adults, prevalence DM ~x2 over 20 yrsover 20 yrs Cowie 09, http://apps.nccd.cdc.gov/DDTSTRS/default.aspx
Cardiovascular disease – still leading cause of death. Cardiovascular disease – still leading cause of death. Hypertension increasing. Hypertension increasing. http://www.cdc.gov/nchs/FASTATS/lcod.htm, Hajjar 03
Metabolic syndrome = early signs of other cluster Metabolic syndrome = early signs of other cluster diseases; 35% adults, ~55%>60 yrs diseases; 35% adults, ~55%>60 yrs Ford ES 05
Alzheimer’s disease – ½ >84 yrs old, 5.3M Alzheimer’s disease – ½ >84 yrs old, 5.3M Alzheimer’s Assoc.
Alzheimer’s Disease/dementiaAlzheimer’s Disease/dementia
Not an inevitable feature of normal aging.Not an inevitable feature of normal aging.
Progressive impairment of memory and multiple Progressive impairment of memory and multiple other cognitive functions, severe enough to interfere other cognitive functions, severe enough to interfere with daily functioning.with daily functioning.
Expected to triple by mid-century Expected to triple by mid-century to over 13 million.to over 13 million.
Likely caused by varying Likely caused by varying combinations of genetic and combinations of genetic and environmental factors.environmental factors.
Annual costs in US over $150 billion.Annual costs in US over $150 billion.
Parkinson’s DiseaseParkinson’s Disease
Progressive movement disorder that includes tremors, Progressive movement disorder that includes tremors, stiffness, and slow movement. May lead to severe stiffness, and slow movement. May lead to severe disability.disability.
Likely caused by variable combinations of genetic and Likely caused by variable combinations of genetic and environmental factors. environmental factors.
About 50,000 new cases About 50,000 new cases annually in US.*annually in US.*
Prevalence in US expected to Prevalence in US expected to double by 2030double by 2030.*.*
** Due to the lack of registries and baseline data on Parkinson’s Disease, Due to the lack of registries and baseline data on Parkinson’s Disease, the figures used here are estimates.the figures used here are estimates.
Alzheimer’s and Parkinson’s Alzheimer’s and Parkinson’s DiseasesDiseases
Characterized by:Characterized by: - abnormal protein deposits abnormal protein deposits - chronic inflammationchronic inflammation- abnormal oxidative stressabnormal oxidative stress
Many neuroscientists are beginning to think Many neuroscientists are beginning to think of some neurodegenerative diseases along a of some neurodegenerative diseases along a continuum, without clearly distinct continuum, without clearly distinct boundaries in clinical or pathological boundaries in clinical or pathological manifestationsmanifestations
Continuum of Age-Associated Continuum of Age-Associated Cognitive ImpairmentCognitive Impairment
Environment Drives Chronic Disease
Early life experiences can influence later-life health Early life experiences can influence later-life health and disease.and disease.
Multiple factors interact to influence health & disease.Multiple factors interact to influence health & disease.
Environmental factors can alter natural pathways which Environmental factors can alter natural pathways which
in turn can lead to chronic disease.in turn can lead to chronic disease.
An ecological health framework considers the individual An ecological health framework considers the individual in the context of family, community, society and in the context of family, community, society and ecosystem.ecosystem.
Basic PrinciplesBasic Principles
Toxic exposuresoxidative
stress
Obesity, hypertension,Cardiovascular disease,
diabetesAlzheimer’s,
dementia, Parkinson’s
Low birth weight
Early life experiences can influence Early life experiences can influence later-life health, diseaselater-life health, disease
Aging begins at conceptionAging begins at conception
Multiple Factors Interact to Influence Health & DiseaseMultiple Factors Interact to Influence Health & Disease
builtenvironme
ntdisease stress
energychemicals
nutrients
An ecological health framework considers An ecological health framework considers the individual in the context of family, the individual in the context of family, community, society, and ecosystem.community, society, and ecosystem.
Altered Pathways
Environment Drives Chronic Disease
Environmental Factors
InflammationInflammationDisrupted Insulin SignalingDisrupted Insulin Signaling
Oxidative StressOxidative Stress
Chronic Disease
Mechanisms of ActionMechanisms of Action
Defined by microscopicDefined by microscopiccharacteristics & laboratory test: characteristics & laboratory test: inflammatory cells & mediatorsinflammatory cells & mediators
CLASSICAL CONCEPT
OF INFLAMMATION
Defined by appearance. Defined by appearance. ““Calor, dolor, rubor, tumor.” Calor, dolor, rubor, tumor.”
Heat, pain, redness, swelling.Heat, pain, redness, swelling.
The New Concept of InflammationThe New Concept of Inflammation
““Atherosclerosis is an Atherosclerosis is an inflammatory disease.”inflammatory disease.”
(2) Ross, Russell. Atherosclerosis – An Inflammatory Disease. NEJM 1999, 340(2); 115-126.
Insulin Signaling = Insulin Signaling = Normal MetabolismNormal Metabolism
Insulin Insulin signalingsignaling
•↓ blood sugarblood sugar•↓↓ artery diseaseartery disease•↓↓ triglyceridestriglycerides
Insulin Insulin signalingsignaling
• ↑ blood sugarblood sugar• ↑↑ artery diseaseartery disease• ↑↑ triglyceridestriglycerides
InflammationInflammationOxidative Oxidative
stressstress
Disrupted Insulin Signaling = Disrupted Insulin Signaling = Inflammatory MetabolismInflammatory Metabolism
Altered PathwaysAltered Pathways
Environment Drives Chronic Disease
Environmental Environmental FactorsFactors
Chronic Chronic DiseaseDisease
Food System/DietFood System/Diet
Novel Nutrients Are Pervasive, Novel Nutrients Are Pervasive,
Promote Inflammatory MetabolismPromote Inflammatory Metabolism
What’s “Novel” in the Western Diet?What’s “Novel” in the Western Diet?
“Hypothetical scheme of fat, fatty acid (ω6, ω3, trans and total) intake (as percentage of calories from fat) and intake of vitamins E and C (mg/d). Data were extrapolated from cross-sectional analyses of contemporary hunter-gatherer populations and from longitudinal observations and their putative changes during the preceding 100 years [75].” From AP Simopoulos, The importance of the ratio of omega-6/omega-3 essential fatty acids. Biomedicine & Pharmacotherapy 56 (2002) 365-379.
Years
% o
f ca
lori
es f
rom
fat
mg
/day
High Glycemic Carbohydrates High Glycemic Carbohydrates Increase the Risk of Chronic Increase the Risk of Chronic
DiseaseDiseaseHigh glycemic carbohydrates break down quickly during digestion, High glycemic carbohydrates break down quickly during digestion,
rapidly releasing glucose (sugar) into the bloodstream.rapidly releasing glucose (sugar) into the bloodstream.
Δ P
lasm
a In
suli
n,m
g/d
l
Time, mins
INSULINEMIC RESPONSE
Low glycemic food
High glycemic food
Properties of Fatty AcidsProperties of Fatty Acids
Omega-3Omega-3 Omega-6Omega-6 SaturatedSaturated
FoodFood PerishablePerishable Durable Durable Increased in Increased inSystemSystem Short shelf lifeShort shelf life Processed foods factory farmed Processed foods factory farmed
Increased in Increased in Long shelf life animals Long shelf life animals pasture- fed pasture- fed
animalsanimals
ImmuneImmune Anti-inflammatoryAnti-inflammatory InflammatoryInflammatory & & InflammatoryInflammatoryProperties Properties Anti-inflammatoryAnti-inflammatory
EvolutionaryEvolutionary Recent markedRecent marked Recent markedRecent marked Recent Recent markedmarked
ContextContext declinedecline increase increase increaseincrease
↓Omega-3, (↑Omega-6)
Insulin Insulin signalingsignaling
• ↑ blood sugarblood sugar• ↑↑ artery diseaseartery disease• ↑↑ triglyceridestriglycerides
InflammationInflammationOxidative Oxidative
stressstress
Novel Nutrients Disrupt Insulin Signaling, Novel Nutrients Disrupt Insulin Signaling, Drive Inflammatory MetabolismDrive Inflammatory Metabolism
Saturated fat
↓Antioxidants
High Glycemic Carbohydrates
Fructose
Increase risksIncrease risks - saturated and trans fatssaturated and trans fats- high glycemic carbohydrateshigh glycemic carbohydrates- lack of fruits/vegetables/omega 3slack of fruits/vegetables/omega 3s- excess omega 6s?excess omega 6s?
Reduce risksReduce risks - fruits, vegetablesfruits, vegetables- omega 3somega 3s- low glycemic carbohydrateslow glycemic carbohydrates- Mediterranean dietMediterranean diet
Influence of NutritionInfluence of Nutritionon Chronic Diseaseon Chronic Disease
Benefits of Mediterranean-Type Diet Benefits of Mediterranean-Type Diet on Chronic Disease Riskon Chronic Disease Risk
Clinical intervention studiesClinical intervention studies 70% 70% ↓ heart attacks, cardiac death↓ heart attacks, cardiac death & total mortality & total mortality DeLogeril 94DeLogeril 94
60%60% ↓ cardiac events in CVD patients* ↓ cardiac events in CVD patients* Ornish 98Ornish 98
~50% ~50% ↓↓ metabolic syndrome metabolic syndrome Esposito 04Esposito 04
39% ↓ in CRP 39% ↓ in CRP Esposito 04Esposito 04
↓↓insulin resistance insulin resistance Esposito 04Esposito 04
↓ ↓ weight weight Esposito 04Esposito 04
Prospective observation studiesProspective observation studies 80% 80% ↓ ↓ diabetes diabetes Martinez-Gonzalez 08Martinez-Gonzalez 08
~31% ~31% ↓ ↓ all-cause & cardiovascular mortality, 22% ↓ cancer all-cause & cardiovascular mortality, 22% ↓ cancer mortality**mortality**calculated from Sofi 08calculated from Sofi 08 73% Alzheimer’s mortality73% Alzheimer’s mortality Scarmeas 07Scarmeas 07
25-30% ↓ Parkinson’s disease 25-30% ↓ Parkinson’s disease Gao 07Gao 07
78% 78% ↓↓ childhood asthma maternal diet childhood asthma maternal diet Chatzi 08Chatzi 08
*10% low fat, vegetarian diet + exercise, stress reduction*10% low fat, vegetarian diet + exercise, stress reduction
**For every 2 point increase in adherence (on a 9 point scale), risk reductions were observed of 0.91 for all cause mortality, 0.91 for CV mortality, 0.94 for occurrence **For every 2 point increase in adherence (on a 9 point scale), risk reductions were observed of 0.91 for all cause mortality, 0.91 for CV mortality, 0.94 for occurrence and mortality from neoplasm. To convey the implications of these findings, we have applied the risk reductions across a 9 point adherence scale to yield a calculated and mortality from neoplasm. To convey the implications of these findings, we have applied the risk reductions across a 9 point adherence scale to yield a calculated ~31% ~31% ↓ ↓ all-cause & CV mortality and a 22% ↓ in cancer mortality.all-cause & CV mortality and a 22% ↓ in cancer mortality.
Benefits ofBenefits of Sustainably-Produced Food Sustainably-Produced Food
Nutritional benefits:Nutritional benefits:Generally higher levels of vitamins, Generally higher levels of vitamins, minerals and phytochemicals minerals and phytochemicals (often dependent on soil quality)(often dependent on soil quality)
Higher Omega-3 contentHigher Omega-3 content
Organic samples contained higher Organic samples contained higher concentrations of polyphenols and concentrations of polyphenols and antioxidants in 75% of the matched antioxidants in 75% of the matched pairs representing those nutrientspairs representing those nutrients
Benefits for farm workers and Benefits for farm workers and communities: communities: Reduced exposure to pesticidesReduced exposure to pesticides
Altered PathwaysAltered Pathways
Environment Drives Chronic Disease
Environmental Environmental FactorsFactors
Chronic Chronic DiseaseDisease
Toxic ChemicalsToxic Chemicals
Air pollution, Lead and other heavy metals, Air pollution, Lead and other heavy metals, some Pesticides,some Pesticides,
Bisphenol A and other Endocrine DisruptorsBisphenol A and other Endocrine Disruptors
LeadLead
Cumulative occupational exposureCumulative occupational exposure ↑ ↑ cognitive impairment cognitive impairment Shih 2007Shih 2007
2x risk Parkinson’s 2x risk Parkinson’s Coon 2006Coon 2006
Cumulative community exposure Cumulative community exposure ↑↑cognitive impairment cognitive impairment Shih 2006Shih 2006
Up to 15 years cognitive aging Up to 15 years cognitive aging Weisskopf 2004Weisskopf 2004
Animal studies of early life exposureAnimal studies of early life exposure Late-life Alzheimer’s markers Late-life Alzheimer’s markers Basha 2005, Lahiri 2007Basha 2005, Lahiri 2007
PesticidesPesticides Parkinson’s DiseaseParkinson’s Disease
– Human studies - 24/31 studies show Human studies - 24/31 studies show ↑↑ risks for PD. (OR 1.6-7) risks for PD. (OR 1.6-7) Brown 2006
– Animals - Rotenone & paraquatAnimals - Rotenone & paraquatdamage dopaminergic neurons in damage dopaminergic neurons in striatal region of brain striatal region of brain Uversky VN 2004
- Combinations of maneb and paraquat; prenatal - Combinations of maneb and paraquat; prenatal exposure “primes” the brain, increasing adult exposure “primes” the brain, increasing adult susceptibility susceptibility Cory-Slechta 2005
Cognitive decline/dementiaCognitive decline/dementia– Low level fungicides in vineyardsLow level fungicides in vineyards 3.5x poor attention, memory 3.5x poor attention, memory Baldi 2001 – Occupational exposure in men associated with 2x risk of Occupational exposure in men associated with 2x risk of
developing AD developing AD Baldi 2003
Insulin Resistance, metabolic syndromeInsulin Resistance, metabolic syndrome Lee 2006, 2007, 2007
– Some persistent pesticides show strong Some persistent pesticides show strong dose-response relation to insulin resistance dose-response relation to insulin resistance
and metabolic syndrome. and metabolic syndrome.
Found in polycarbonate plastic, Found in polycarbonate plastic, resins, sealants.resins, sealants.
Exposures are nearly ubiquitous.Exposures are nearly ubiquitous.
Endocrine disruptor, oxidative stress.Endocrine disruptor, oxidative stress.
Causes fat accumulation & insulin Causes fat accumulation & insulin resistance at low levels (animals). resistance at low levels (animals). Alanso-Magdelena 2006, Wada 2007Alanso-Magdelena 2006, Wada 2007
3-fold 3-fold ↑↑ Cardiovascular disease. Cardiovascular disease. Lang 2008Lang 2008
2-fold 2-fold ↑↑ Insulin Resistance. Insulin Resistance. Lang 2008Lang 2008
Bisphenol ABisphenol A
polycarbonate
Insulin Insulin signalingsignaling
• ↑ blood sugarblood sugar• ↑↑ artery diseaseartery disease• ↑↑ triglyceridestriglycerides
InflammationInflammationOxidative Oxidative
stressstress
Environmental Factors Disrupt Insulin Signaling, Environmental Factors Disrupt Insulin Signaling, Drive Inflammatory MetabolismDrive Inflammatory Metabolism
Endocrine Disruptors -BPA, dioxins, PCBs, some pesticides
Saturated fat
High Glycemic Carbohydrates
Air Pollution
↓Antioxidants
↓Omega-3
Fructose
SomePesticides
Lead, other heavy metals
Altered PathwaysAltered Pathways
Environment Drives Chronic Disease
Environmental Environmental FactorsFactors
Chronic Chronic DiseaseDisease
Built EnvironmentBuilt EnvironmentPhysical ActivityPhysical Activity
Health Benefits of Physical ActivityHealth Benefits of Physical Activity
Reduced ongoing levels of oxidative Reduced ongoing levels of oxidative
stress and inflammatory burden. stress and inflammatory burden. Brooks 2008, Attipoe 2008Brooks 2008, Attipoe 2008
Inversely associated with the Inversely associated with the
risks of Alzheimer’s/dementia and risks of Alzheimer’s/dementia and cognitive decline. cognitive decline. Rovio 2005Rovio 2005
Subjects at risk for AD who walked 150 min. per Subjects at risk for AD who walked 150 min. per week showed improvements in cognition while the week showed improvements in cognition while the control group showed no net change from baseline control group showed no net change from baseline at 1.5 yrs. at 1.5 yrs. Lautenschlager Lautenschlager 20082008
Increasing physical activity at any age improves Increasing physical activity at any age improves physical and emotional wellbeing.physical and emotional wellbeing.
Walkable Cities Projects Walkable Cities Projects Community GardensCommunity Gardens Farmer’s MarketsFarmer’s Markets Rails to TrailsRails to Trails
Livable Communities Enhance Healthy AgingLivable Communities Enhance Healthy Aging
Cuba- lost fossil fuelsCuba- lost fossil fuels
↑↑biking, walking, local plant-based food biking, walking, local plant-based food ↑↑physical activityphysical activity 50%50%↓↓obesity 50% obesity 50% ↓↓mortality: DM 51%, CVD 35%, stroke 20%, all cause 18% mortality: DM 51%, CVD 35%, stroke 20%, all cause 18%
Franco M et al. Impact of Energy Intake, Physical Activity, and Population-wide Weight Loss on Cardiovascular Disease and Diabetes Mortality in Cuba, 1980-2005. AJE 166, 12; Sept. 19, 2007
Sustainable Food & Transportation Solutions:
The Cuba Example
Green SpaceGreen Space Reduces Stress, Mortality, Improves CognitiveReduces Stress, Mortality, Improves Cognitive Function
Shortens post surgical Shortens post surgical recovery time, reduces recovery time, reduces need for pain medications.need for pain medications.
Ulrich ‘84
Attention deficits improve Attention deficits improve after a walk in the park. after a walk in the park. Effect = methylphenidate. Effect = methylphenidate.
Taylor ’08
Access to green spaceAccess to green space reduces the effect of reduces the effect of poverty on mortality by poverty on mortality by ~50%. ~50%. Mitchell ‘08
Insulin Insulin signalingsignaling
• ↑ blood sugarblood sugar• ↑↑ artery diseaseartery disease• ↑↑ triglyceridestriglycerides
InflammationInflammationOxidative Oxidative
stressstress
Environmental Factors Disrupt Insulin Signaling, Environmental Factors Disrupt Insulin Signaling, Drive Inflammatory MetabolismDrive Inflammatory Metabolism
Obesity
Endocrine Disruptors -BPA, dioxins, PCBs, some pesticides
Inactivity
Saturated fat
High Glycemic Carbohydrates
Air Pollution
↓Antioxidants
↓Omega-3
Fructose
Lead, other heavy metals
SomePesticides
Altered PathwaysAltered Pathways
Environment Drives Chronic Disease
Environmental Environmental FactorsFactors
Chronic Chronic DiseaseDisease
Socio-Economic Socio-Economic StressStress
Depression, poverty, violence, Depression, poverty, violence, inadequate health careinadequate health care
Socioeconomic, Psychosocial StressorsSocioeconomic, Psychosocial Stressors
Stress, depressionStress, depression risk for risk for CVD, ADCVD, AD Sesso, Kario, OwnbySesso, Kario, Ownby
People with lower SE status are at People with lower SE status are at risk for exposure to multiple risk for exposure to multiple environmental hazardsenvironmental hazards ↑↑damagedamage..
– Lead + stress Lead + stress ↑↑cognitive impairment cognitive impairment Glass 2009Glass 2009
– Lead + air pollution Lead + air pollution ↑↑CV autonomic CV autonomic dysfunction dysfunction Park 2008Park 2008
People who live in neighborhoods that lack social People who live in neighborhoods that lack social cohesion, sidewalks, or safety limit their exercise and have cohesion, sidewalks, or safety limit their exercise and have an increased risk of depression and possibly obesityan increased risk of depression and possibly obesity..
Berke EM 07, Molnar BE 04
Effects of the Built Environment on HealthEffects of the Built Environment on Health
Insulin Insulin signalingsignaling
• ↑ blood sugarblood sugar• ↑↑ artery diseaseartery disease• ↑↑ triglyceridestriglycerides
InflammationInflammationOxidative Oxidative
stressstress
Environmental Factors Disrupt Insulin Signaling, Environmental Factors Disrupt Insulin Signaling, Drive Inflammatory MetabolismDrive Inflammatory Metabolism
Obesity
Endocrine Disruptors -BPA, dioxins, PCBs, some pesticides
Inactivity
Saturated fat
High Glycemic Carbohydrates
Air Pollution
↓Antioxidants
↓Omega-3
Fructose
Lead, other heavy metals
SomePesticides
Stress
Multiple Multiple Factors Factors
Interact to Interact to Influence Influence
Health Health & &
DiseaseDisease
Environmental Environmental Factors Factors
Chronic DiseaseChronic Disease
Altered Altered Biological Biological PathwaysPathways
↑↑ GreenhouseGreenhouse GasesGases
Climate CrisisClimate Crisis
Heat, drought, storms, Heat, drought, storms, fires, ice sheet fires, ice sheet instability, sea level rise, instability, sea level rise, loss of glacial irrigation, loss of glacial irrigation, refugees, food refugees, food insecurity/starvation,insecurity/starvation,tropical diseasestropical diseases
Environmental Factors Drive Chronic Environmental Factors Drive Chronic Disease Disease andand the Climate Crisis the Climate Crisis
SolutionsSolutions forfor
Healthy People & A Healthy PlanetHealthy People & A Healthy Planet
Major Illnesses Are PreventableMajor Illnesses Are PreventablePersonal Actions to Profoundly Reduce RisksPersonal Actions to Profoundly Reduce Risks
Personal Level – “Approaches to Healthy Living”Personal Level – “Approaches to Healthy Living”
Eat healthy – whole, fresh, unprocessed, plant based Eat healthy – whole, fresh, unprocessed, plant based foodsfoods Avoid toxicants whenever possibleAvoid toxicants whenever possible
Exercise Exercise
Be socially engagedBe socially engaged
Localized, diversified andLocalized, diversified and sustainable food production sustainable food production Clean, renewable energyClean, renewable energy ↓↓ air pollution, chemical air pollution, chemical
exposuresexposures Mass transit Mass transit that connects with bike paths and sidewalksthat connects with bike paths and sidewalks can can
reducereduce air pollution & obesityair pollution & obesity
Chemical regulatory reformChemical regulatory reform ““Safer substitute” Safer substitute” programs and programs and green product design green product design ↓↓
toxic exposures, ecosystem, wildlife contamination; job creationtoxic exposures, ecosystem, wildlife contamination; job creation Universal health careUniversal health care disease prevention & equitable health disease prevention & equitable health
care.care.
Major Illnesses Are PreventableMajor Illnesses Are PreventablePolicy Initiatives to Profoundly Reduce RisksPolicy Initiatives to Profoundly Reduce Risks
Major Illnesses Are PreventableMajor Illnesses Are PreventablePolicy Initiatives to Profoundly Reduce RisksPolicy Initiatives to Profoundly Reduce Risks
Examples of Specific Initiatives:Examples of Specific Initiatives:
Nutrition Nutrition – – Reform agricultural subsidies to be directed toward Reform agricultural subsidies to be directed toward programs and practices that provide sufficient nutritious, sustainably programs and practices that provide sufficient nutritious, sustainably produced food and restore ecosystems that have been degraded by produced food and restore ecosystems that have been degraded by agricultural activities.agricultural activities.
Toxic ChemicalsToxic Chemicals – – Reform the national Toxic Substances Reform the national Toxic Substances Control Act to include phase out of persistent, bioaccumulative, or Control Act to include phase out of persistent, bioaccumulative, or highly toxic chemicals.highly toxic chemicals.
Activity/NatureActivity/Nature – – Incorporate indoor and outdoor green spaces Incorporate indoor and outdoor green spaces and exercise areas into designs of nursing homes and assisted living and exercise areas into designs of nursing homes and assisted living facilitiesfacilities
AcknowledgementsAcknowledgements
Based on the Report by Greater Boston Physicians for Social Based on the Report by Greater Boston Physicians for Social Responsibility (www.psr.org/boston) and the Science and Responsibility (www.psr.org/boston) and the Science and Environmental Health Network (www.sehn.org) authored by Environmental Health Network (www.sehn.org) authored by Jill Stein Jill Stein MD, Ted Schettler MD, MPH, Maria Valenti & Ben RohrerMD, Ted Schettler MD, MPH, Maria Valenti & Ben Rohrer
Primary authors of this presentation: Primary authors of this presentation: Jill Stein MD, Ted Schettler Jill Stein MD, Ted Schettler MD, MPHMD, MPH
Contributing Authors: Contributing Authors: Maye Thompson RN, PhD, Marybeth Maye Thompson RN, PhD, Marybeth Palmigiano MPH, Maria Valenti. Palmigiano MPH, Maria Valenti.
Illustrations byIllustrations by: Stephen Burdick Design: Stephen Burdick Design
Permission is granted to use this presentation or individual slides with Permission is granted to use this presentation or individual slides with proper acknowledgement and cited as from proper acknowledgement and cited as from Environmental Threats to Environmental Threats to Healthy AgingHealthy Aging by Stein, Schettler et al. by Stein, Schettler et al. The authors of the The authors of the presentation do not authorize changes, and are not presentation do not authorize changes, and are not responsible for the accuracy of material if changes have been responsible for the accuracy of material if changes have been made.made.
For more information contact:For more information contact:
Greater Boston Greater Boston
Physicians for Social ResponsibilityPhysicians for Social Responsibility
www.psr.org/Bostonwww.psr.org/Boston
[email protected]@igc.org
Additional Additional ReferencesReferences
For Mediterranean Diet SlideFor Mediterranean Diet Slide 2828
Additional Additional NotesNotes
What’s Novel in the Western Diet?What’s Novel in the Western Diet?
Slide 22Slide 22