Modern Lifestyle Triggers Genetic Vulnerability As Type 2 Diabetes Rates Surge Among High Risk Populations

New NTNU study finds those with high genetic risk are more likely to develop type 2 diabetes today than in the 1980s due to modern lifestyle changes.

By: AXL Media

Published: Mar 31, 2026, 10:03 AM EDT

Source: Information for this report was sourced from The Norwegian University of Science and Technology (NTNU)

The Growing Divide in Genetic Susceptibility

A major study published in The Lancet Diabetes & Endocrinology highlights a widening gap in how genetic risk factors manifest in the modern era. Researchers found that the prevalence of type 2 diabetes among those with a high genetic predisposition has increased dramatically between the 1980s and the 2010s. According to Vera Vik Bjarkø, a PhD research fellow at NTNU, while some individuals remain naturally resilient, those carrying specific genetic markers are becoming increasingly vulnerable to the disease as societal habits shift.

Decades of Data from the HUNT Study

The findings are based on an extensive analysis of the Trøndelag Health Study, which has tracked more than 86,000 participants since 1984. With nearly 200,000 individual measurements spanning several decades, the research provides a rare look at how health outcomes have evolved over time. The data suggests that the biological blueprint of a high risk individual has not changed, but rather the environmental triggers that activate these genes have become more prevalent in daily life.

Societal Evolution and Dietary Temptations

The research team points to the profound transformation of Norwegian society over the last forty years as the primary driver of this trend. In the mid 1980s, lifestyle factors such as limited television options, the absence of mobile technology, and higher relative costs for snacks acted as natural barriers to sedentary behavior and overconsumption. Today, the ubiquity of high calorie, easily accessible food and digital entertainment creates a landscape that Bjarkø suggests is specifically conducive to developing diabetes for those with an underlying genetic risk.