British study links daily stress to silent, lasting heart damage

A recent British study has discovered that persistent daily stress can cause lasting damage to the heart, elevating the risk of heart attacks and strokes. Conducted by researchers from the MRC Laboratory of Medical Sciences and Imperial College London, the investigation analyzed data from almost 480,000 UK adults. The study focused on a blood marker called glycoprotein acetyls (GlycA) and heart imaging, alongside genetic data.

Researchers identified chronic inflammation as the primary factor contributing to these changes, which are often linked to socioeconomic status and lifestyle.

The findings revealed that individuals with the highest inflammation levels (top 20%) faced a 43% greater chance of experiencing a heart attack or stroke compared to those with the lowest levels (bottom 20%). Additionally, their hearts exhibited clear structural changes, which may remain undetected for years before leading to heart failure. Professor Declan O'Regan from Imperial College London highlighted that millions of people silently deal with elevated inflammation, which gradually alters their heart health over time.

The study pinpointed specific inflammatory proteins, primarily from the interleukin-1 and tumor necrosis factor families, as potential contributors to this damage, many of which are currently targeted by drugs in clinical trials. This suggests that anti-inflammatory treatments could potentially prevent heart disease before symptoms appear. The researchers propose combining blood tests for inflammation with genetic risk scores to identify individuals who might benefit most from early intervention.

While inflammation is a vital part of the body's healing process, the study emphasizes its darker side, emphasizing the need to address the causes of inflammation and poor heart health. The research also underscores the importance of encouraging lifestyle changes that protect the heart for future generations.