Your Immune System Remembers Obesity for up to a Decade, Study Finds

Researchers found obesity can leave long-lasting epigenetic marks in helper T cells, even years after weight loss.

These DNA methylation changes may keep inflammation and immune dysfunction elevated for 5 to 10 years.

The findings help explain why risks for diabetes, cancer, and other diseases can persist after slimming down.

The study points to obesity-related immune “memory” and possible new treatment targets.