Myths vs facts: HLA-DQ2 and Langlebigkeit

HLA-DQ2 is a gene variant strongly linked to celiac disease, not directly to longevity. The myth that HLA-DQ2 carriers automatically live longer or shorter lacks solid scientific evidence. While untreated celiac disease may increase the risk of certain chronic conditions, indirectly affecting lifespan, the overall effect on longevity is small and highly dependent on lifestyle, timing of diagnosis, and dietary adherence. Most HLA-DQ2 carriers never develop celiac disease. Evidence for a direct connection between HLA-DQ2 and longevity is weak, based on population genetic associations rather than causal studies. A DNA test for HLA-DQ2 alone is not predictive for longevity. Lifestyle factors such as diet, exercise, and stress management have a far greater impact.