How to prioritize evidence-based anti-aging strategies for biomarkers

[AdamBJ]

I'm a 42-year-old man starting to research anti-aging protocols beyond basic skincare and diet. I've been reading about supplements like NMN and resveratrol, as well as the potential of intermittent fasting and cold exposure, but the information is overwhelming and often contradictory. I'm looking for a realistic, evidence-based approach that focuses on longevity biomarkers rather than just appearance. What are the foundational lifestyle and supplementation strategies that have the strongest scientific backing for cellular health and slowing biological aging, and how do you prioritize them?