Environment and Aging: How Your Surroundings Can Affect Your Longevity

Living in different environments, such as urban, suburban, or rural settings, as well as the specific characteristics of those environments, may influence long-term health outcomes. Environmental factors, including air quality and occupational exposures, have been studied for their potential role in overall health and well-being.

This article explores how environmental conditions are associated with healthspan and lifespan, and outlines practical considerations that individuals may take into account when evaluating and improving their living environments.

Air Quality, Green Spaces & More: The Impact of Living Environment on Longevity

Urban Living

Urban areas are characterized by higher population density and are often associated with increased exposure to factors such as air pollution, noise, and psychosocial stress. These exposures have been studied for their potential associations with long-term health outcomes, including cardiovascular and respiratory health (Adams et al., 2015).

Access to green spaces in urban environments can vary. Exposure to natural environments has been associated with lower perceived stress and may support aspects of physical and mental well-being. In some cases, urban settings may also present limitations in access to fresh foods, recreational opportunities, and certain forms of social support (Adams et al., 2015). Reduced access to these resources has been linked in observational research to outcomes such as social isolation and depressive symptoms, which may influence overall health.

At the same time, population-level data suggest that individuals living in urban areas often have longer average lifespans compared to those in rural settings. This pattern has been attributed to multiple factors, including differences in healthcare access and utilization, as well as variation in lifestyle and risk factors (Abrams, L., et al., 2021).

Rural Living

Rural environments are generally characterized by lower population density and are often associated with reduced exposure to air pollution and noise, as well as greater access to natural spaces. These factors have been studied for their potential to support aspects of physical and mental well-being. In some cases, rural settings may also provide greater access to minimally processed or locally sourced foods.

At the same time, rural areas may face limitations in access to healthcare services and certain forms of social support. These differences have been associated in population-level studies with variations in health outcomes and overall quality of life (Singh et al., 2014).

Additionally, some research has observed higher prevalence of risk factors such as obesity, smoking, and lower levels of physical activity in certain rural populations, which may influence the likelihood of developing chronic conditions over time (Singh et al., 2014).

Suburban Living

Suburban environments are often described as an intermediate setting between urban and rural areas. They may offer access to healthcare services, recreational opportunities, green spaces, and social infrastructure, while typically having lower population density and, in some cases, lower levels of noise and air pollution compared to urban centers (Adams et al., 2015).

This combination of characteristics has been associated with a range of lifestyle and environmental exposures that may influence overall health and well-being. However, as with urban and rural settings, health outcomes in suburban areas can vary depending on factors such as infrastructure, socioeconomic conditions, and individual behaviors. 

Air Quality

Air quality is an important factor in supporting respiratory and cardiovascular health. Exposure to air pollution and allergens has been studied for its associations with respiratory conditions such as asthma and chronic obstructive pulmonary disease (COPD), as well as with cardiovascular outcomes (Kim et al., 2017; Brook et al., 2010).

A 2021 publication from the Energy Policy Institute at the University of Chicago (EPIC) highlighted the significant influence of ambient particulate pollution on population-level life expectancy. In terms of life expectancy impacts, the study noted that exposure to particulate pollution is comparable to the effects of smoking and exceeds those associated with alcohol use, unsafe water, or HIV/AIDS.

Individuals may consider steps to support indoor air quality, such as regular cleaning of air vents and filters, ensuring proper ventilation during cooking or when using cleaning products, and using HEPA air filters or indoor plants. These practices have been associated in research with reductions in indoor pollutants and may contribute to overall environmental comfort and well-being (Kim et al., 2017).r air with HEPA filters and plants can also contribute to better long-term health. (Kim et al., 2017).

Occupational Hazards and Toxins

Exposure to occupational hazards and environmental toxins has been studied for its potential associations with long-term health outcomes (Mannino et al., 2018). Research suggests that minimizing exposure through proper safety measures, protective equipment, and adherence to workplace guidelines can help support overall well-being.

Individuals are encouraged to discuss workplace safety concerns with employers and consult relevant occupational health experts or regulatory authorities for guidance on reducing potential risks.

Impacts on Hallmarks of Aging

Living in a polluted environment can negatively impact multiple hallmarks of aging, including mitochondrial dysfunction, cellular senescence, and inflammation (Zhang et al., 2021). Exposure to toxins can also impact genomic instability, stem cell exhaustion, and deregulated nutrient sensing (Mannino et al., 2018).

Air pollution can affect proteostasis, altered cellular communication, and epigenetic alterations. It’s also been linked to telomere shortening (Kim et al., 2017). Additionally, social isolation and lack of social support, which can occur at higher frequencies in rural and urban areas, can impact genomic instability and epigenetic alterations, two hallmarks of aging. Studies have shown that social isolation can lead to changes in gene expression and DNA methylation patterns, which can have negative health consequences (Cacioppo et al., 2015; Powell et al., 2013). In contrast, strong social connections have been shown to positively impact both physical and mental health (Umberson et al., 2010).

Fortunately, there are ways to combat social isolation. Joining local clubs or groups, volunteering, and participating in community events are all great ways to build social connections and support networks (Cacioppo et al., 2015). Additionally, technology has made it easier than ever to stay connected with friends and family who may live far away.

Environment, Pollution, and Longevity

The environment in which we live and work can have a significant impact on our healthspan and lifespan. While there are certain aspects of our environment that are beyond our control, there are many steps we can take to minimize our exposure to harmful toxins and pollutants and maximize our access to healthcare, social support, greenspaces, and other resources that promote health and longevity. By taking these steps, we can increase our chances of living long, healthy lives.

References

1. Abrams, L., Myrskyla, M., Mehta, N. (2021). The growing urban-rural divide in US life expectancy: contribution of cardiovascular disease and other major causes of death. International Journal of Epidemiology, 50, 1970-1978. 
2. Cacioppo, J.T., Cacioppo, S., Capitanio, J.P., & Cole, S.W. (2015). The neuroendocrinology of social isolation. Annual Review of Psychology, 66, 733-767. doi: 10.1146/annurev-psych-010814-015240
3. Powell, N.D., Sloan, E.K., Bailey, M.T., Arevalo, J.M.G., Miller, G.E., Chen, E., Kobor, M.S., Reader, B.F., Sheridan, J.F., & Cole, S.W. (2013). Social stress up-regulates inflammatory gene expression in the leukocyte transcriptome via beta-adrenergic induction of myelopoiesis. Proceedings of the National Academy of Sciences, 110(41), 16574-16579. doi: 10.1073/pnas.1310655110
4. Umberson, D., Montez, J.K., & Social Relationships, A.D. (2010). Social relationships and health: A flashpoint for health policy. Journal of Health and Social Behavior, 51(Suppl), S54-S66. doi: 10.1177/0022146510383501

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