Can BDNF help with Langlebigkeit?

BDNF (Brain-Derived Neurotrophic Factor) is a protein crucial for neuronal survival and plasticity. Some animal and observational human studies suggest that higher BDNF levels are associated with better cognitive function and potentially longer healthspan. However, direct evidence that BDNF itself can causally extend human longevity is limited. Most findings are correlational, and BDNF levels are influenced by lifestyle factors like exercise, diet, and sleep—not solely by genetics. Consumer DNA tests claiming to predict or optimize BDNF for longevity are not supported by strong human evidence. The evidence grade is mechanistic/unclear. While BDNF is a promising biomarker in aging research, current consumer applications are premature. Practical steps to support BDNF include regular aerobic exercise, omega-3 fatty acids, and adequate sleep. These interventions have more robust evidence for promoting brain health and longevity than any direct BDNF-targeted test or supplement.