The claim that HLA-DQ2 directly causes stress is a myth. HLA-DQ2 is a genetic marker strongly associated with celiac disease, an autoimmune condition triggered by gluten. While stress can exacerbate symptoms or trigger flares in individuals with celiac disease or other autoimmune disorders, there is no robust evidence that HLA-DQ2 itself influences the body's stress response. The provided contexts contain no information on HLA-DQ2 or stress. Therefore, this answer is based on general medical knowledge, not on the given sources. Fact: HLA-DQ2 increases risk for celiac disease, and stress can be a trigger for its onset or worsening. However, a direct causal link between HLA-DQ2 and stress is not established. Consumers should be cautious of DNA tests that imply such connections without solid evidence.
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