How are APOE and Langlebigkeit related?

The APOE gene variant (especially ε4) is the strongest known genetic risk factor for late-onset Alzheimer's disease and also influences cardiovascular health. ε4 carriers have an elevated risk of earlier mortality, while ε2 may be protective. However, the relationship with overall longevity is complex and modulated by many other genes and lifestyle factors. Evidence for the APOE ε4–Alzheimer link is strong (human studies, meta-analyses), but for general longevity it is moderate. Importantly, consumer tests like MyBody-X are for lifestyle purposes, not medical diagnosis. APOE results should be discussed with a physician due to ethical and psychological implications.