Education & upskilling

1.1 Introduction

There is a consistent link between educational attainment and health outcomes, which if tackled could dramatically transform how populations age. Education acts as a fundamental social determinant of health, empowering individuals with the knowledge, resources, and opportunities to lead longer, healthier lives.

Education and Lifespan

The most compelling evidence for education’s impact is found in life expectancy data:

• Life Expectancy Difference: In the US, a college graduate can expect to live an average of 11 years longer than an individual who never completed high school (IHME, 2025).
• Global Context: To put this into perspective, if US college graduates were a country, their life expectancy of 84.2 years would have ranked fourth globally in 2019. In stark contrast, if those who did not finish high school were a country, their life expectancy of 73.5 years would have ranked 137th globally (SciTechDaily, 2025).
• Mechanisms: The reasons behind this gap are multifaceted. Higher education is a strong predictor of higher income, better employment opportunities (often with fewer physical risks), and improved health literacy, all of which contribute to better health and access to quality healthcare.

Education and Cognitive Health

Higher educational attainment is a significant protective factor against age-related cognitive decline and neurodegenerative diseases like Alzheimer’s disease. The primary theory explaining this relationship is the “cognitive reserve” hypothesis.

• The Theory: Higher levels of education and mentally stimulating activities are believed to build a stronger, more flexible neural network in the brain. This “reserve” allows the brain to better cope with and compensate for the physical damage caused by conditions like Alzheimer’s, delaying the onset of symptoms (Meng et al., 2012).
• Impact: Lower education is a significant risk factor for dementia, with an increased odds for dementia prevalence of 2.6 (Meng et al., 2012).
• Population-level Change: A study from Johns Hopkins showed a remarkable 24% decrease in the prevalence of dementia among Americans aged 65 and older between 2000 and 2012 attributed to the increase in years of education for this group during this period (Langa et al., 2012).

Education and Other Health Outcomes

The impact of education extends to a wide range of other health outcomes and risk factors.

• Chronic Disease Management: Education is inversely associated with the risk of chronic illnesses. A study of individuals with type 2 diabetes found that those with higher education had significantly lower odds of developing major complications, including a 41% lower odds for coronary heart disease and a 25% lower odds for chronic kidney disease (Slåtsve et al., 2022). This is often due to better health literacy and the ability to effectively manage their condition.
• Obesity: The link between education and body size is also well-documented – each additional year of education reduces the probability of being overweight by 2-4% in men (Webbink et al., 2008).
• Mental Well-being: Upskilling and employment have a quantifiable positive impact on mental health. Employment has been found to be associated with a reduction in outpatient psychiatric treatment and improved self-esteem for individuals with severe mental illnesses (Luciano et al., 2014).