Chronic stress and hidden inflammation increase the risk of heart attack and stroke by 43 percent, according to a large-scale study published in the European Journal of Preventive Cardiology. Researchers from the MRC Laboratory of Medical Sciences and Imperial College London analyzed health data from approximately 480,000 individuals in the United Kingdom to uncover how long-term immune activation alters the physical structure of the heart over years.
GlycA Blood Marker Links Low-Grade Inflammation to Structural Heart Damage
The study tracked levels of the blood marker glycoprotein-acetyl (GlycA), which serves as an indicator of chronic, low-grade inflammation. Investigators found that participants registering in the top 20 percent of GlycA levels faced a 43 percent higher risk of experiencing a heart attack or stroke compared to individuals with the lowest inflammation scores. Cardiac imaging data revealed that these elevated inflammatory markers correspond directly to physical changes within the organ, including thickened heart walls, smaller ventricular chambers, and reduced filling capacity. According to study lead Declan O’Regan, these structural transformations can develop quietly over years without producing noticeable symptoms in affected patients, eventually contributing to heart failure.
Social Factors, Mental Health, and Genetics Drive Inflammatory Vulnerability
Beyond traditional cardiovascular hazards like smoking and physical inactivity, the research highlighted a strong correlation between psychological stress, socioeconomic status, and elevated GlycA levels. O’Regan noted that social factors and mental health exert a powerful influence on inflammation and subsequent cardiac damage. Genetic predispositions also play a role in determining how severely an individual's immune system reacts to lifestyle pressures. The data indicates that certain people possess a natural resilience against inflammation-driven tissue changes, while others remain highly susceptible to damage stemming from chronic daily strain.
Worth a look