Myths vs facts: NutriCare | INFINITY DNA-Test and Schlaf

MyBody-X DNA tests for sleep claim to reveal chronotypes (e.g., 'morning lark' based on CLOCK gene) or sleep debt risk. However, the scientific basis is weak: chronotype prediction from single SNPs is unreliable because effect sizes are tiny and ancestry-specific. For sleep debt, no direct genetic test exists; SOD2 variants may modulate oxidative stress from sleep loss, but the effect is small. Evidence is mostly marketing or mechanistic, not clinically validated. Rely instead on validated questionnaires (e.g., MEQ-SA) and your own experience. A DNA test cannot diagnose sleep quality or disorders. Lifestyle factors like sleep hygiene, exercise, and stress management have a far greater impact on sleep than the tested genes. Safety note: persistent sleep issues warrant a doctor's visit, not self-diagnosis via genetic testing.