What should I know about Sportgene Genetik?

A 'morning lark' variant in PER2 is associated with earlier wake times and peak alertness in the morning, based on GWAS data. However, the effect size is small; environmental and behavioral factors—especially shift work—overwhelm this genetic tendency. For a shift worker, this variant may indicate a slight natural preference for early sleep, which could make adapting to night shifts more challenging, but it is not deterministic. The human circadian system is highly plastic, and interventions like strategic light exposure, consistent sleep scheduling, and melatonin timing are far more impactful than any single SNP. Do not overinterpret this result: it is a statistical tendency, not a diagnosis. If you experience significant sleep or health issues, consider a clinical sleep assessment rather than relying solely on genetic data. The evidence level is 'gwas'—solid association but low predictive power for individuals.