How are FOXO3 and fertility related?

The provided context does not contain direct information on the relationship between FOXO3 and fertility. FOXO3 is a transcription factor well studied in longevity research, with associations to healthy aging and human lifespan. Some studies suggest that FOXO3 variants may influence ovarian reserve and age at menopause, indirectly affecting fertility. However, the evidence is largely associative and insufficient for clinical recommendations. Without specific sources from the given context, the strength of this link remains limited. No direct causal mechanism is established.