Myths vs facts: Fitness | LifestyleCheck and Langlebigkeit

The question of myths vs facts regarding fitness, lifestyle checks, and longevity requires nuance. **Myth:** A consumer DNA test (e.g., MyBody-X) can tell you exactly how to train or eat to slow aging. Reality: These tests are for lifestyle, not medical use. They report weak associations (e.g., FADS variants affecting omega-3 conversion) that explain only a small fraction of variance. **Fact:** Healthy diet, regular exercise, adequate sleep, and stress management have strong evidence for promoting longevity. **Myth:** Collagen supplements or fish oil are magic bullets for skin aging or inflammation. Evidence is mechanistic or moderate; direct EPA/DHA intake is beneficial but not a panacea. **Myth:** Senolytics (agents that clear senescent cells) are already proven anti-aging therapies. Human evidence remains early-stage and mechanistic. **Bottom line:** Lifestyle checks can offer insights but no miracles. The most robust levers for longevity remain lifestyle factors.